San Diego quarterback Philip Rivers didn't practice on Wednesday.

Chargers fans shouldn't hit the panic button. Rivers was just getting a veteran rest day from rookie coach Mike McCoy.

Rivers says he knows it's good for him, but that he hates watching.

The Chargers have been decimated by injuries this summer, and the sight of Rivers donning a baseball cap instead of a helmet during drills came with an unsettling feeling.

Rivers will lead the offense on Saturday night when the Chargers visit Arizona.

What's not as clear is how long Rivers will be under center. He played in just three series in last week's loss at Chicago.

The third exhibition game is the one when starters usually play longer. McCoy won't say how long his starters will play.