Concurring and Dissenting Opinion by
Justice HINOJOSA.I concur with that portion of the majority’s opinion overruling Saratoga’s four is*737sues on appeal. However, I respectfully dissent from that portion of the majority’s opinion holding that Radiology Associates is not entitled to attorney’s fees and expenses under the Texas Free Enterprise and Antitrust Act of 1983 (“the Act”)1 because I conclude that Radiology Associates produced sufficient evidence to establish that Saratoga’s antitrust claims were both (1) groundless and (2) brought in bad faith or for the sole purpose of harassment. Accordingly, I would sustain Radiology Associates’ cross-appeal and would render judgment for the amount of attorney’s fees and expenses that Radiology Associates incurred in defending against Saratoga’s antitrust claims.
I agree with the majority that the only evidence before the trial court regarding Radiology Associates’ claim for attorney’s fees and expenses under section 15.21(a)(3) of the Texas Business and Commerce Code is an affidavit from its counsel. The majority notes that there is no indication that the trial court held a hearing to consider the circumstances surrounding the filing of Saratoga’s action and the credibility and motives of Saratoga and its counsel, and furthermore, there is no indication that Radiology Associates ever objected to the failure to hold such a hearing. However, I note the record shows that at the end of the ninth day of a ten-day trial, the following exchange occurred between counsel for Radiology Associates and the trial court:
Counsel: Your honor, the reason that I rested subject to that other evidence, is that, we do have a counterclaim for attorney’s fees. There’s specifically a counterclaim under the Texas Free Enterprise and Anti-Trust Act, and it’s gonna require the Court to hear evidence, because the finding is to be made by the Court and not by the jury-
The Court: Very well.
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The Court: Well, since those are going to be matters for the Court, and I can hear those matters later on and any objections at that time.
The record is devoid of any reason why the requested hearing was not held, but only supplies us with Radiology Associates’ “Offer of Proof in Form of Affidavit of John C. Holmgreen, Jr. in Support of Counterclaim for Attorneys’ Fees and Expenses.”
I also find the majority’s reliance on Davila v. World Car Five Star, 75 S.W.3d 537, 544 (Tex.App.-San Antonio 2002, no pet.) and New York Underwriters Ins. Co. v. State Farm Mut. Auto. Ins. Co., 856 S.W.2d 194, 205 (Tex.App.-Dallas 1993, no writ), for the proposition that “without hearing evidence on the circumstances surrounding the filing of the pleading and the signer’s credibility and motives, the trial court has no evidence to determine whether the party or its attorneys filed the pleading in bad faith or to harass,” to be misplaced. Although Davila is a case applying the similar DTPA provision, I note that the San Antonio court cited New York Underwriters for this proposition. However, New York Underwriters is a case applying Rule 13 sanctions, see New York Underwriters Ins. Co., 856 S.W.2d at 205, and as the Dallas court pointed out, Rule 13 requires the trial court to hold an evi-dentiary hearing to make the necessary factual determinations about the motives and credibility of the person signing the groundless petition. See Tex.R. Crv. P. 13. By contrast, section 15.21(a)(3) has no such requirement. See Tex. Bus. & Com.Code Ann. § 15.21(a)(3) (Vernon 2002).
*738Finally, I disagree with the majority’s conclusion that the allegations of the affidavit do not establish that Saratoga acted in bad faith or for the sole purpose of harassment. The affidavit evidence shows that in its original petition, Saratoga generally alleged violations of sections 15.05(a), (b), (c), (d), and (I) of the Act. Radiology Associates filed special exceptions to Saratoga’s original petition and requested that it specifically identify whether its claims under the Act involved a “horizontal or vertical” conspiracy. Subsequently, on May 10, 2001, Saratoga filed a first amended petition and omitted its antitrust claims. However, on June 11, 2001, Saratoga filed a second amended petition and reasserted its antitrust claims. Radiology Associates again filed special exceptions on the same grounds it had asserted against Saratoga’s original petition. On June 27, 2001, the trial court ordered Saratoga to specifically plead whether it was asserting a horizontal or vertical trade restraint. Saratoga never complied with the trial court’s order.
The evidence shows that the case was set for trial, and Radiology Associates continued with discovery. Also, Radiology Associates filed a motion for summary judgment on both traditional and no-evidence grounds, regarding Saratoga’s claims under the Act. The trial court heard the motion on the eve of trial. At the hearing, Saratoga informed the trial court that it no longer intended to pursue its claims under the Act and abandoned them.
The record shows that Saratoga presented no evidence during the trial that Radiology Associates had violated any portion of the Act. Even though it had abandoned its antitrust claims and had presented no evidence of any violation of the Act, Saratoga submitted a proposed jury charge that included questions regarding its abandoned antitrust claims. At a post-verdict hearing, Saratoga argued that its invocation and subsequent abandonment of antitrust claims was strategic.
In his affidavit, Radiology Associates’ counsel also set forth his qualifications, his opinion regarding reasonable attorney’s fees, and the basis for his opinion. He testified that his fees for the defense of the case totaled $460,087.00, and approximately forty percent of these fees were directly related to Saratoga’s antitrust claims. Therefore, attorney’s fees directly related to Saratoga’s antitrust claims totaled $184,034.80. Evidence was also presented that $4,000.00 of the fees of Radiology Associates’ economic expert were devoted to defend the antitrust claims and constituted litigation expenses.
The record reflects that Saratoga did not respond or controvert any of the evidence presented by Radiology Associates regarding their claim that Saratoga’s antitrust claims were groundless and brought in bad faith or for the purpose of harassment. The general rule is that the testimony of an interested witness, such as a party to a suit, though not contradicted, does no more than raise a fact issue to be determined by the jury. Ragsdale v. Progressive Voters League, 801 S.W.2d 880, 881-82 (Tex.1990). However, there is an exception to this rule — where the testimony of an interested witness is not contradicted by any other witness, or attendant circumstances, and the same is clear, direct and positive, and free from contradiction, inaccuracies, and circumstances tending to cast suspicion thereon, it is taken as true, as a matter of law. Id. The exception is especially true where the opposing party has the means and opportunity to disprove the testimony, if it is not true, and fails to do so. Id. (citing Anchor Cas. Co. v. Bowers, 393 S.W.2d 168, 169-70 (Tex.1965)).
*739The affidavit from Radiology Associates’ counsel was the only evidence tendered to the trial court. See Splettstosser v. Myer, 779 S.W.2d 806, 808 (Tex.1989); see also Donwerth v. Preston II Chrysler-Dodge, Inc., 775 S.W.2d 634, 637 (Tex.1989). Because Saratoga did not present any contradictory evidence, and the evidence presented by Radiology Associates is clear, direct and positive evidence, I conclude that Sar-atoga’s antitrust claims were groundless and brought in bad faith. Because section 15.21(a)(3) provides that upon finding that a party’s antitrust claims are groundless and brought in bad faith, the court “shall” award a reasonable attorney’s fee, court costs, and other reasonable expenses of litigation, I would hold that the trial court abused its discretion in denying Radiology Associates its reasonable attorney’s fees, court costs, and litigation expenses. See Tex. Bus. & Com.Code Ann. § 15.21(a)(3) (Vernon 2002).
For these reasons, I respectfully dissent.
. See Tex. Bus. & Com.Code Ann. ch. 15 (Vernon 2002).