NEW YORK -- Andy Pettitte adamantly insisted on Friday that Roger Clemens' current legal situation had nothing to do with his decision to retire from baseball.
Pettitte is expected to be a prosecution witness in the perjury trial of Clemens, his former teammate and friend, which is scheduled to begin this summer in Washington, D.C.
Clemens was indicted on charges that he lied to a congressional committee about using steroids and other performance-enhancing drugs.
"I would hope that anyone or any of you guys that have followed me through that whole situation would know that that has not had any effect, I mean zero, in my decision," Pettitte said during the news conference at Yankee Stadium to announce his retirement. "I would never let that interfere with the decision, a life decision that I'm going to make for me and my family."
"I feel like God has carried me through all that so unbelievably and he's going to continue to carry me through that, no matter what goes on with that situation," he added. "The way the fans in almost every city I've gone to have supported me since that stuff has gone on, it has just been absolutely amazing to me."
There had been speculation that Pettitte would choose not to play this season to avoid the media spotlight associated with Clemens' trial, but the left-hander said on Friday that his potential role in the Clemens trial "has had no impact" on his life.
Pettitte and Clemens both were mentioned in the Dec. 2007 Mitchell Report on performance-enhancing drug use in baseball. Pettitte admitted publicly to using human growth hormone on two occasions, in 2002 and 2004, to recover from injury.
Pettitte told investigators in 2008 that Clemens admitted to Pettitte that he used HGH in 1999 or 2000. Clemens later told Congress that Pettitte "misremembered" the conversation.
Pettitte has decided to sit out the 2011 season, but did not completely rule out a return to baseball in 2012.
"I believe I'm done. I promise you I would not be doing what I'm doing right now if I didn't think I was done," he said. "And I don't know what I'm going to feel like two months from now, three months from now. I can tell you one thing: I am not going to play this season. I can tell you that 100 percent. But I guess you can never say never."