Is CJ's knee an issue? 

April, 17, 2014
Apr 17
10:43
AM ET
You can say what you want about Chris Johnson's effort and dedication on the gridiron, but one thing you can't knock him for is his durability. To wit, the running back has never missed a game due to injury during his six seasons in the NFL. Still, that doesn't mean there isn't plenty of wear and tear on his body after touching the pill more than 2,000 times as a pro.