Is there any indication if there is a medical condition and is the drugs contributing to it or vice versa?

In any event, a position that once looked deep has big question marks after Gurley.

Cunningham is serviceable #3 guy, but if Gurley goes down, that is a significant drop off. He really isn't a 20 carry per game type of guy. More of a Utility special teams, a few 3rd down blocking type of player.