It's a conversation that Clemens has famously claimed that Pettitte "misremembers."
The righthander on trial who won 354 major-league games and the lefty on the stand with 240 wins had an awkward reunion Tuesday, Day 8 in the retrial of charges that Clemens lied when he told Congress in 2008 that he never used steroids or HGH.
Pettitte's appearance enlivened the proceedings and came without warning. The government interrupted testimony from the trial's first witness to call Pettitte just before noon. Wearing a gray suit, Pettitte testified mostly with his hands clasped in front of him and rarely looked at Clemens. The two haven't spoken recently because of the trial, but Pettitte nevertheless said he found it difficult to testify because he still considers Clemens a good friend.
Pettitte has acknowledged he received HGH from McNamee; Clemens has not. Pettitte said he used HGH in 2002 and 2004 and regretted it, adding that he doesn't think it helped him physically and that it has tarnished his name.
"I wish I never would've" taken HGH, he said. "If I hadn't done it, I wouldn't be here today."
Asked to recall the conversation in which Clemens supposedly admitted to using HGH, Pettitte remembered it taking place during a workout at Clemens' house in Texas during the 1999-2000 offseason. Maybe inside the gym. Maybe outside.
Then, under cross-examination from one of Clemens' lawyers, Pettitte showed how tenuous his account might seem to the jury. Attorney Michael Attanassio asked if it came amid a "lot of huffing and puffing" that accompanies a workout.
"Yes," Pettitte answered.
Pettitte was then asked if Clemens' remark was made "in passing" - as opposed to in a "focused conversation."
"I would say so," Pettitte said.
Pettitte will return to the stand Wednesday.