WASHINGTON (AP):

ROGER CLEMENS and his accuser, Brian McNamee, will be the main witnesses at a House hearing on the Mitchell Report after Andy Pettitte and two others originally invited to testify were told on Monday night they don't need to show up.

Former Yankee Chuck Kno-blauch and steroids dealer Kirk Radomski also were dropped from the witness list for today's public session. One new witness was added on Monday night: a member of the staff who worked with former Senate majority leader George Mitchell to produce December's report on drugs in baseball.

But all attention will be focused on Clemens, a seven-time Cy Young Award winner, and McNamee, his former personal trainer, who alleged he injected the pitcher with performance-enhancing drugs.

"I guess it's showtime, isn't it?" Clemens' lead lawyer, Rusty Hardin, said in a telephone interview.