NEW YORK—Roger Clemens apologized Monday for unspecified mistakes in his personal life, a statement Brian McNamee’s lawyers intend to use to attack the pitcher’s credibility at trial.

The Daily News reported last week Clemens had a decade-long relationship with country star Mindy McCready that began when she was 15 and an aspiring singer. The newspaper also linked the seven-time Cy Young Award winner to former Manhattan bartender Angela Moyer and Paulette Dean Daly, a former wife of champion golfer John Daly.

Clemens denied having an affair with a 15-year-old but didn’t specifically address whether he had a romance with McCready.

“Even though these articles contain many false accusations and mistakes, I need to say that I have made mistakes in my personal life for which I am sorry,” Clemens said in a statement issued by spokesman Patrick Dorton. “I have apologized to my family and apologize to my fans. Like everyone, I have flaws. I have sometimes made choices which have not been right.”

The apology was first reported by the Houston Chronicle.

McNamee, Clemens’ former trainer, accused the pitcher in December’s Mitchell Report of using performance-enhancing drugs in 1998, 2000 and 2001, before players and owners agreed to ban them from baseball.

Clemens, a 354-game winner, has repeatedly denied using steroids and human growth hormone. The defamation suit is being contested in federal court in Houston.

“I think what it says without saying it is that he apparently admits he cheated on his wife and family. And if he cheated on them, I think it’s reasonable to assume that he cheated his fans and baseball,” Richard Emery, one of McNamee’s lawyers, said in a telephone interview.

Clemens tried to draw a distinction between McNamee’s allegations and the Daily News reports.

“I believe my personal life has nothing to do with the accusations of steroid and HGH use,” Clemens said. “I have already made clear that I did not use them. Now, I have been accused of having an improper relationship with a 15-year old girl. Nothing could be further from the truth. This relationship has been twisted and distorted far beyond reality. It is just one of many, many accusations that are utterly false.”