Roger Clemens and his former trainer, Brian McNamee, were in the hot seat Wednesday as they gave testimony under oath on Capitol Hill.

It was a case of ?he said-he said? between Clemens and McNamee, who were both under oath. Clemens remained defiant during the hearing, denying steroid use and saying his former trainer is a liar.

?I have always tried to help anyone who has crossed my path that was in need. To that end, here I am now with me being accused of using steroids and cheating the game of baseball,? Clemens said.

McNamee said he injected Clemens with performance-enhancing drugs more often than he previously claimed.

?I helped taint our national pastime,? McNamee said.

McNamee told investigators that he injected Clemens 16 to 21 times with steroids and human growth hormone from 1998 to 2001. McNamee also said that Yankees teammates Andy Pettitte and Chuck Knoblauch used HGH.

Clemens has denied the accusations that became public in December's Mitchell Report. Pettitte, who was excused from appearing Wednesday, issued a statement shortly before the hearing. In that statement, he acknowledged using human growth hormone in 2004 in addition to his December admission that he took it for two days in 2002.

In a second sworn affidavit provided by Pettitte, the ballplayer said Clemens did have a conversation with him in 2000 in which he admitted to using HGH.The 4 1/2-hour hearing did get heated at times as several members of Congress tried to get to the truth. ?I don't know what to believe,? Rep. Dan Burton (R-Ind.) told McNamee. ?But I know one thing I don't believe, and that's you.?

Some Long Island residents who saw the hearing say they think it was a little bit of a spectacle that just makes what is already known more public.

AP wire reports contributed to this story.To watch the entire hearing, go to channel 612 on your iO digital cable box and select iO Extra.

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