Richard “Tom” Carraher appeals from the entry of summary judgment on his age discrimination claim against Target Corporation. Carraher alleges that Target terminated his employment in violation of the Age Discrimination in Employment Act (ADEA), 29 U.S.C. §§ 621-634, and the Minnesota Human Rights Act (MHRA), Minn.Stat. §§ 363A.01-.41. On appeal, Carraher contends that the district court1 erred in its pretext analysis and did not view the evidence in the light most favorable to him. We affirm.
I.
Target hired Carraher, then 56 years old, as a recruiter in June 2003. In September 2003, Carraher became an executive recruiter for Target’s southern region, which stretches from Texas to Florida. Carraher, however, worked in Minneapolis, Minnesota.
In August 2004, Dan Caspersen became Target’s Vice President for Stores Human Resources. Caspersen sought to “decentralize” Target’s executive recruiting by moving recruiters to the regions for which they were recruiting. As a result of the decentralization, Carraher’s position was relocated to Texas, the region for which he primarily recruited. When Carraher’s supervisor, Kim Strong, asked Carraher if he would be willing to relocate, Carraher informed her that he preferred to remain in Minneapolis and would seek another position with Target there.
After unsuccessfully seeking four different recruiting positions at Target’s Minneapolis headquarters, Carraher e-mailed Strong on January 24, 2005, and informed her that he was interested in the possibility of relocating to Texas. On January 27, 2005, Carraher met with Strong to discuss the issue. According to Carraher, Strong presented him with only one option at that meeting: termination with severance. Strong asserts that they discussed three options: severance, the prospect of Car-raher relocating to Texas, and a different recruiting position, located in Minneapolis, that Carraher had originally proposed.
On February 2, 2005, Carraher sent a letter to Todd Blackwell, Target’s Executive Vice President for Human Resources, alleging that his impending termination was motivated by age bias. Carraher failed to return to work after February 4, 2005. On March 4, 2005, Target terminated his employment.
*716On October 11, 2005, Carraher filed suit alleging age discrimination in violation of the ADEA and the MHRA, and retaliation.2 The district court granted summary judgment to Target on all Carraher’s claims. Carraher appeals.
II.
Carraher contends that the district court erred by confusing the two separate prongs of the pretext analysis, see Haas v. Kelly Servs., Inc., 409 F.3d 1030, 1035 (8th Cir.2005) (discussing prongs), and by granting summary judgment to Target despite direct evidence that Target’s proffered reason for his termination was false and circumstantial evidence that Target discriminated against him because of his age. Carraher further contends that the district court did not view the evidence in the light most favorable to him.
We review a district court’s grant of summary judgment de novo. Wittenburg v. Am. Express Fin. Advisors, Inc., 464 F.3d 831, 836 (8th Cir.2006), cert. denied, — U.S. -, 127 S.Ct. 2936, 168 L.Ed.2d 262 (2007). Summary judgment is proper if there is no genuine issue as to any material fact and the moving party is entitled to judgment as a matter of law. Fed.R.Civ.P. 56(c); Celotex Corp. v. Catrett, 477 U.S. 317, 322-23, 106 S.Ct. 2548, 91 L.Ed.2d 265 (1986). We must view the evidence, and the inferences that may be reasonably drawn from it, in the light most favorable to the nonmoving party. Williams v. City of Carl Junction, Mo., 480 F.3d 871, 873 (8th Cir.2007).
The ADEA and the MHRA both forbid an employer from taking adverse employment actions against an employee because of his age. 29 U.S.C. § 623(a)(1); Minn.Stat. § 363.03, subd. 2; see Chambers v. Metro. Prop. & Cas. Ins. Co., 351 F.3d 848, 855 (8th Cir.2003) (age discrimination claims under the MHRA are analyzed in the same fashion as claims under the ADEA). To establish a claim of intentional age discrimination, a plaintiff may present direct evidence of such discrimination or may prove his claim through circumstantial evidence. See Mayer v. Nextel W. Corp., 318 F.3d 803, 806 (8th Cir.2003). “[Djirect evidence is evidence ‘showing a specific link between the alleged discriminatory animus and the challenged decision, sufficient to support a finding by a reasonable fact finder that an illegitimate criterion actually motivated’ the adverse employment action.” Griffith v. City of Des Moines, 387 F.3d 733, 736 (8th Cir.2004) (quoting Thomas v. First Nat’l Bank of Wynne, 111 F.3d 64, 66 (8th Cir.1997)). Where the plaintiff presents only circumstantial evidence of discrimination, as Carraher does in the instant case, we apply the familiar burden-shifting analysis set forth in McDonnell Douglas Corp. v. Green. See 411 U.S. 792, 800-04, 93 S.Ct. 1817, 36 L.Ed.2d 668 (1973).3
*717Under McDonnell Douglas, the plaintiff must first establish a prima fade case of discrimination. In the instant case, Target concedes that Carraher has established a prima facie case with respect to the termination of his employment.4
Because Carraher has established a prima facie case, Target must articulate a legitimate non-discriminatory reason for Carraher’s termination. See Haas, 409 F.3d at 1035. Target contends that it terminated Carraher in March 2005 after Carraher walked off the job in February and failed to return to work or otherwise inform his supervisor of his plans. Accordingly, Target has proffered a legitimate, non-discriminatory reason for Car-raher’s termination, and “the presumption of unlawful discrimination disappears.... ” See Thomas v. Corwin, 488 F.3d 516, 529 (8th Cir.2007).
The burden then falls to Carraher, who can avoid summary judgment if the evidence creates (1) a fact issue as to whether Target’s proffered reason is pre-textual and (2) a reasonable inference that age was a determinative factor in his termination. See Haas, 409 F.3d at 1035. In some cases, “a plaintiffs prima facie case, combined with sufficient evidence to find that the employer’s asserted justification is false, may permit the trier of fact to conclude that the employer unlawfully discriminated.” Reeves v. Sanderson Plumbing Prods., Inc., 530 U.S. 133, 148, 120 S.Ct. 2097, 147 L.Ed.2d 105 (2000).
In an attempt to establish that Target’s proffered reason for his termination is pretextual, Carraher provides contradictory explanations for his absence. In both his opposition to summary judgment and opening brief, Carraher contends that he was using accrued vacation during the month of February 2005 and that he planned to return in March.5 In his reply brief, Carraher provides a second explanation: he was absent because he “understood from the severance package that he was directed to stop working on site as of February 11 and terminated effective March 4.” In a further attempt to create a fact issue, Carraher presents a letter from Strong that, he contends, terminates him for rejecting the severance agreement.
Carraher abandoned his first explanation for his absence in the penultimate page of his reply brief after Target noted, without contradiction, that Strong did not give Carraher approval to use his vacation and that Carraher had not accrued enough vacation to take an entire month off. As for Carraher’s second explanation, he did not raise it before the district court in his opposition to summary judgment. Accordingly, we will not consider it. See Winthrop Res. Corp. v. Eaton Hydraulics, Inc., 361 F.3d 465, 469 (8th Cir.2004) (“We review de novo only the evidence and arguments that were before the district court when it made its determination in the [summary judgment] order[ ] challenged on appeal.”). We do, however, note that this explanation does not account for Carraher’s unexcused one-week absence between February 4, the last day he reported to work, and February 11.
Carraher’s contention that he was terminated because he had not signed the severance agreement does not create a fact issue as to whether Target’s proffered rea*718son is pretextual because it is not supported by the evidence. The letter by Strong to Carraher on March 2, 2005, does not give a reason for his termination; instead, it informs Carraher of the date when his salary and benefits will expire. The letter informs Carraher that Target has kept him on the payroll “[a]s a result of the consideration period,” but that because he has rejected the severance agreement, “your last actual date on the payroll will be March 4, 2005.” Thus, it is not inconsistent with Target’s proffered reason.
Also, Carraher’s contention that Strong withdrew two previously available options at the January 27 meeting does not explain how or why the withdrawal undermines the veracity of Target’s proffered reason for Carraher’s termination. Further, it is undisputed that Target first offered the recruiting job in Texas to Car-raher and that he initially declined it because he preferred to stay in Minneapolis. Accordingly, Carraher has not created a fact issue as to whether Target’s proffered reason is false, and he cannot carry his burden. See Reeves, 530 U.S. at 148, 120 S.Ct. 2097; Haas, 409 F.3d at 1035. Although we may end our analysis here, we will address the second prong of the test.
As for the second prong, Carraher concedes he has no direct evidence that age was a determinative factor in Target’s decision to terminate him; instead, he argues that Target’s corporate culture fostered a preference for younger employees. As evidence of this preference, Carraher contends that (1) non-decision makers made age-based comments; (2) he was replaced by someone substantially younger; (3) the average age of recruiters declined after his termination; (4) Target increased its recruiting efforts on college campuses; and (5) Target deviated from its policy by not investigating Carraher’s claim. Assuming these allegations are true, they are insufficient to create a reasonable inference that age was a determinative factor in Carraher’s termination.
According to Carraher, “the three primary [age-based] statements at issue” are: (1) a September 2004 statement by Senior Diversity Representative Develle Turner that he had been at a meeting wherein a “top Target executive” defined employees who fit the “Target Brand” as persons who are “young and energetic”; (2) an April 2004 statement to Carraher by a human resources manager that, “We cannot discriminate on the basis of age, but we want someone with fire in the belly. Older, more experienced candidates do not have fire in the belly”; (3) a September 2004 statement by a district manager who told Carraher that, after interviewing an individual in his mid-50’s, “I felt like I was interviewing my dad. It felt bad. He should be retired.”
Carraher concedes that the employees who made the age-based comments “were not explicitly involved in the decision to terminate him” and that their remarks should be viewed as “stray remarks.” As we have previously stated,
A plaintiff must establish “some causal relationship” to show “the significance of ... statements made by persons other than the relevant decision-maker to the resolution of the ultimate issue of intentional discrimination.” Therefore, we consider factors such as (1) whether the statements were made by employees who took part in the decision or influenced the decision to terminate the plaintiff; [and] (2) the time gap between when the statements were made and the date of termination....
Wittenburg, 464 F.3d at 837 (quoting Hutson v. McDonnell Douglas Corp., 63 F.3d 771, 779 (8th Cir.1995)).
Carraher cannot establish any causal connection between the above statements *719and Carraher’s termination. All three of the statements were made by non-decision makers and relate to the recruitment of others, and were thus made to Carraher in the context of his employment as an executive recruiter. Further, all are generalized statements that do not tend to establish that age was the basis for Carraher’s termination. Finally, all of the comments were made more than five months prior to Carraher’s termination.
Carraher’s contentions regarding “the increased youthfulness of [Target’s] recruiting” do not create a reasonable inference that age was a determinative factor in his termination. Although Carraher was replaced by someone substantially younger than him, in this case 28 years younger, we have previously held that this fact, though necessary to establish a prima facie case, possesses “insufficient probative value to persuade a reasonable jury that [plaintiff] was discriminated against.” Nelson v. J.C. Penney Co., Inc., 75 F.3d 343, 346 (8th Cir.1996); see Thomas, 483 F.3d at 529 (“[Plaintiff] presents no evidence, other than her replacement by a younger woman, indicating [defendant’s] proffered reasons for her termination were a pretext for age discrimination. For these reasons, the district court properly granted summary judgment to the defendants on [plaintiffs] age discrimination claim.”).
Similarly, Carraher does not show how a small decline in the average age of recruiters or an increased emphasis on college recruiting creates a reasonable inference that age was a determinative factor in his termination. Carraher’s contention that the decline in the average age of recruiters after his termination, from 38.5 to 35.09, based on the ages of the 11 recruiters employed on February 1, 2005, and the 22 recruiters employed on December 31, 2005, is based on speculation concerning statistically insignificant information. Carraher did not present any expert testimony to support his claims, and his sample size and pattern are too small to be statistically significant. See Bell v. Bolger, 708 F.2d 1312, 1320-21 (8th Cir.1983) (finding plaintiffs statistics “inconclusive” where the sample size of 15 “was small and the differences in recommendation and selection rates were not that great”). Additionally, Carraher concedes that Target hired two recruiters over 40 during that period and hired him when he was 56 years old. As for Target’s decision to recruit on college campuses, we have previously stated that recruitment of “recent college graduates is not evidence [that a company] discriminates against older workers.” Grossmann v. Dillard Dep’t Stores, 109 F.3d 457, 459 (8th Cir.1997).
Finally, Carraher’s contention that Target deviated from its policy by not investigating his claim is belied by the evidence. The evidence indicates that Carraher’s letter to Target, alleging discrimination and threatening litigation, was referred to Target’s in-house counsel and investigated. We further note that, even if Target’s policy required an investigation under these circumstances, Target could disregard its policy “as long as it does not unlawfully discriminate in doing so.” See Haas, 409 F.3d at 1036 (quoting Mayer, 318 F.3d at 810). Because there is no evidence that Target did not follow its policy because of Carraher’s age, its alleged failure to follow policy does not give rise to an inference of age discrimination. See id.
III.
We affirm the district court’s summary judgment order on Carraher’s age-discrimination claim.
. The Honorable Richard H. Kyle, United States District Judge for the District of Minnesota.
. Carraher abandons his retaliation claim on appeal by failing to brief the issue. See Fair v. Norris, 480 F.3d 865, 869 (8th Cir.2007) (by failing to assert grounds for reversal of orders in his briefs, the appellant is deemed to have waived the issues on appeal).
. With respect to the dissent’s assertion that our “evidentiary analysis” is "imprecise” in light of Desert Palace, Inc. v. Costa, 539 U.S. 90, 123 S.Ct. 2148, 156 L.Ed.2d 84 (2003), this court has expressly stated that Desert Palace has "no impact” on summary judgment analyses, Griffith v. City of Des Moines, 387 F.3d 733, 736 (8th Cir.2004), and has consistently demonstrated this principle in age discrimination cases. See McGinnis v. Union Pacific R.R.,496 F.3d 868, 874, (8th Cir.2007); Morgan v. A.G. Edwards & Sons, Inc., 486 F.3d 1034, 1042 (8th Cir.2007); Thomas v. Corwin, 483 F.3d 516, 528 (8th Cir.2007); Lewis v. St. Cloud State Univ., 467 F.3d 1133, 1136 (8th Cir.2006); Jones v. United Parcel Serv., Inc., 461 F.3d 982, 991 (8th Cir.2006), cert. denied, - U.S. -, 127 S.Ct. 2088, 167 L.Ed.2d 766 (2007); Lee v. Rheem Mfg. Co., 432 F.3d 849, 852-53 (8th Cir.2005).
. On appeal, Carraher does not allege that Target's decision to decentralize store recruiters, the catalyst for the elimination of his position in Minneapolis, or Target’s failure to hire him for a different position in Minneapolis was the result of age discrimination.
. Carraher’s opposition to summary judgment and opening brief contain these identical sentences, among others to their effect: “Defendant declares that Plaintiff ceased working on February 4, implying that he walked off the job. In fact, he was using his accrued vacation and planned to return in March.”