I think it's funny that people think Palmer won't be OK from this. ACL reconstructions are a dime-a-dozen these days. I've got two reconstructed knees, and yes, at almost 42, the older knee (1990) is starting to bother me a bit, but these guys get first class medical care and rehab, and he'll be fine. He's only 26 years old.
The injury is nowhere comparable to Willis' injury.