On Friday, Andy Pettitte threw a bullpen session in Chicago. He threw at 75 percent however felt fine. That was supposed to be the day when we would know whether or not Pettitte would come back. Instead, he will probably throw another session and the Yankees will take it from there. There are two possible outcomes for that session.
Good outcome: Pettitte could return in mid-September and be the horse he was before the injury, when was on his way to a Cy Young-type season.
Bad outcome: He could feel a "pull" in his groin, and the Yankees could be stuck with the pitchers they have, or get someone off waivers.
Needless to say, the Yankees desperately need Pettitte back. With him at full strength, the Bombers could have a dangerous 1-2 punch with him and C.C. Sabathia.