Yeah, it was with about 1:05 left in the second quarter IIRC. Unblocked blitzer blindisided him. You can see he's in a lot of pain after the hit.
I don't think people really used it as an excuse, more just a statement of fact. At least that's the way I took it.
Jason Garrett offense rank minus Tony Sparano: 18, 14, 7, 15, 15