Andy Pettitte is scheduled to throw another bullpen session today. According to the intrepid Mark Feinsand in the Daily News:

Friday, Joe Girardi will trek out to the bullpen to watch Pettitte test his groin with a 20-25 pitch throwing session, one that could play a huge role in the Yankees’ stretch drive.

“I think we’re all curious to see how he’s going to do,” Girardi said. “I think there’s anxiety on Andy’s part and on everybody’s part. I think it will be a good indicator. Every time that he’s tried to really push off, he’s felt a little tug. If he’s able to really push off (Friday), that would tell me that he’s healed.”

The alternative is the worst-case scenario for the Yankees. If things go well for Pettitte, it would put him on course for a mid-September return, giving him about three weeks to get himself ready for the postseason. If Pettitte still can’t push off the mound at full strength Friday, even the eternally optimistic Girardi admits it would be grim news.

“That would be a pretty big setback,” Girardi said.

The Yanks without Pettitte will be Big CC and praying for a whole lot of the Score Truck.