WASHINGTON — Two catchers who were teammates of pitcher Roger Clemens said he played with integrity and refused to cut corners, the opposite of the image painted by prosecutors of a man who cheated to gain an edge and then lied about it to Congress.

WASHINGTON — Two catchers who were teammates of pitcher Roger Clemens said he played with integrity and refused to cut corners, the opposite of the image painted by prosecutors of a man who cheated to gain an edge and then lied about it to Congress.

"I don't think he'd cheat," said former journeyman catcher Charlie O'Brien, who caught Clemens' games for much of the 1997 season with the Toronto Blue Jays. O'Brien portrayed Clemens as such a stickler that he'd refuse to throw scuffed baseballs because he considered it cheating.

O'Brien also said he had seen vitamin B12 "shots lined up ready to go" for players, a claim also made by Clemens and for which he was charged with obstructing Congress. The government maintains that Clemens concocted the B12 account as a cover for steroid injections.

During Clemens' trial, prosecutors have asked several government witnesses associated with major league teams whether they've ever seen B12 shots lined up, and all of them have said no. But O'Brien replied "Yes, sir" when defense lawyer Rusty Hardin posed that question.