As Roger Clemens' personal life continues to come under scrutiny, federal agents are also still making inquiries into whether he lied to Congress about using performance enhancing drugs.

Shaun Kelley, the owner of a weight loss center in Houston, told a local television station that he was questioned on Monday by FBI agents.

Kelley told Houston Fox affiliate KRIV he was given a polygraph test while being asked about his relationship with the pitcher. "They asked me if I've ever given him human growth hormone or performance enhancing drugs, and I said, 'No.' " Asked about the lie detector test, he said, "I passed it, Bro, trust me."

The New York Times called Kelley and the FBI for comment, but neither responded.

Meanwhile, after romantically linking Clemens and country singer Mindy McCready earlier in the week, the New York Daily News reports Thursday that golfer John Daly's ex-wife, Paulette Dean Daly, was among the women Clemens had relationships with while married to Debbie Clemens.

Sources told the Daily News that Clemens, at the time a married father of four, arranged trips to Anaheim Stadium for Daly so she could watch him pitch for the Yankees against the Angels.

The sources also say Clemens and Daly spent time together in Palm Springs, Calif.

Daly said, "I know Roger, I consider him a good friend. That's all I'm comfortable saying."

The relationship developed after the Dalys' marriage ended, according to the newspaper report.

Earlier this week, the Daily News reported that Clemens had a decade-long relationship with McCready that began when she was a 15-year-old aspiring singer and the pitcher was a Boston Red Sox ace.

"I cannot refute anything in the story," McCready told the newspaper in a story posted on its Web site Monday night.

"I have known Roger Clemens for a long time," she said, without detailing the nature of their relationship.

Clemens' lawyer, Rusty Hardin, confirmed the pitcher and singer had known each other for a long time but told the newspaper there was no sex.

"Mindy McCready is a longtime family friend of Roger Clemens and the Clemens family," Hardin said in a statement Monday. "At no time did Roger engage in any kind of inappropriate or improper relationship with her. It is unfortunate that the Daily News has chosen to report anonymous allegations that are completely unfounded, have no basis in fact, and have nothing to do with Roger's baseball career or the issue of steroid use in baseball."

The News' original story, which appeared on the newspaper's Web site Sunday night and in editions Monday, quoted several people who asked not to be identified because of the sensitivity of the situation.

Clemens was 28 and a married father of two when he first met McCready, the newspaper reported.

In its story Monday night, sources told the News that McCready went with Clemens to his hotel room in Fort Myers, Fla., after their first meeting but that they did not have sex. The relationship turned intimate after she later moved to Nashville and became a country star, the paper said.

John Russell / AP Country music singer Mindy McCready

The story could undermine Clemens' reputation, which is central to the defamation suit the former pitcher has filed against former personal trainer Brian McNamee. McNamee contends Clemens used performance-enhancing substances during his major league career.

"If true, it's just another example of Roger's pervasive prevarications which will be at the core of any defamation case," said McNamee's attorney, Richard Emery, in an e-mail to The Associated Press.

"If the case heads to trial and is not dismissed, as we feel it should be, we will be calling (McCready) as a witness," Emery told the News.

The newspaper said Clemens sent cash to McCready to help her with legal issues and reached out to her when she was in jail last year in Tennessee. Clemens sometimes sent her amounts of $25,000, the paper said.

The 32-year-old McCready was sentenced last September for violating probation from a 2004 drug arrest and was released from jail last Dec. 30. The violation occurred in July when McCready was accused of scuffling with her mother and resisting arrest at her mother's home in Fort Myers, Fla. She still must serve two years' probation.

McCready had a No. 1 single in 1996 with "Guys Do It All the Time."