As you probably know, Roger Clemens was on a television program last night. See coverage by Alyson Footer and Peter Abraham for more. Boston.com has a transcript.

On the same night that the interview aired, Clemens filed suit against McNamee (via Footer) for defamation.

"All of McNamee's accusations are false and defamatory per se," the lawsuit states. "They are not true, and they injured Clemens' reputation and exposed him to public hatred, contempt, ridicule, and financial injury. McNamee made the allegations with actual malice, knowing they were false."

Clemens' lawsuit also asks a Texas court to declare that he has not defamed McNamee. McNamee's New York lawyers have threatened to sue Clemens for defamation, depending what Clemens said on 60 Minutes.