Today is the day, and I am intrigued as to how this is all going to go down. There are two late-breaking developments in the case.

From the New York Times:

Roger Clemens will be confronted with a new and damaging affidavit from Andy Pettitte when he appears before the House Committee on Oversight and Government Reform on Wednesday to testify about allegations that he used performance-enhancing drugs, two lawyers familiar with the matter said late Tuesday.

Clemens will also be asked about corroborating information that committee staff members developed on their own that ties Clemens to such drugs, the lawyers said. That information, they said, stands separate and apart from the assertions made about Clemens by his former personal trainer, Brian McNamee, who contends that he injected Clemens with steroids and human growth hormone from 1998 to 2001.

Given the way news breaks, I would not be surprised if the two developments are closely connected if not the same. Supposedly, this is the revelation from Andy Pettitte’s testimony.

From the Associated Press:

Roger Clemens told Yankees teammate Andy Pettitte nearly 10 years ago that he used human growth hormone, Pettitte said in a sworn affidavit to Congress, the Associated Press learned Tuesday.

Pettitte disclosed the conversation to the congressional committee holding Wednesday’s hearings on drug use in baseball, a person familiar with the affidavit said. The person spoke to the AP on condition of anonymity because the document had not been made public.

According to the person familiar with the affidavit, who said it was signed Friday night, Pettitte also said Clemens backtracked when the subject of HGH came up again in conversation in 2005, before the same House committee held the first hearing on steroids in baseball.

Pettitte said in the affidavit that he asked Clemens in 2005 what he would do if asked by the media about HGH, given his admission years earlier. According to the account told to the AP, the affidavit said Clemens responded by saying Pettitte misunderstood the previous exchange in 1999 or 2000 and that, in fact, Clemens had been talking about HGH use by his wife in the original conversation.

If you thought Clemens showed his anger before, imagine what his demeanor will be after having his wife dragged into this whole mess.

I predict that Mitchell’s representative Charles P. Scheeler is going to get a good deal of attention from the committee.

I may “live blog” this, but depending on other factors I may not be able to do so. Please, check back later in the day. At the minimum I’ll have some comments after the hearing.