The sources said Brian McNamee, who claims to have injected Clemens with performance-enhancing steroids, will tell a congressional hearing Wednesday that the pitcher was at a 1998 party hosted by Canseco, the slugger who at the time was Clemens' teammate on the Toronto Bluejays, New York Newsday reported Monday. Clemens' attorney denies the player was at the party.
McNamee's testimony will deal with a conversation Clemens recounted to him involving the pitcher's wife, Debbie, and Jessica Canseco, who was married to Canseco at the time of the party, the sources said.
The former trainer is quoted in the Mitchell Report, a congressional report on steroid use in Major League Baseball, that Clemens began using steroids and human growth hormone as a result of his attendance at the party. However, Rusty Hardin, an attorney for Clemens, claims the pitcher was not at the party, and has cited an affidavit signed by Canseco saying Clemens was not present.