TMac and Rafer do that every single time they are in the lane. TMac gives the long painful "argh" while Rafer does a "eh!" when they drive in.
McGrady's yelling because his knee and back are giving out on him, not because anyone has hit him. It's funny, as soon as I saw N.B.A. in the thread title, I knew it was an article in the NY Times. Are they the only publication that writes NBA like that?
I think it was someone here saying it sounds like a sheep everytime Tracy goes to the basket. That made me laugh.
Well, in his defense, you can hear him doing it more at home games because it's usually the only noise coming from the arena...