It's actually Planter Fasciitis (according to Todd Golden), very different from a Planters Wart. I'm not an athletic trainer or anything but a Planter Wart is more of a skin irritation and Planter Fasciitis is actual inflammation on the bottom of the foot that can be very painful. Probably not something to downplay, if it was worth reporting than it was obviously bothering him.
I personally don't think he will see limited minutes or anything like that, it's game time he will be ready to go.
Not directed at you Dave, just a general question: Talk of pulling a red shirt from who? Brown? Good grief, the kid has a good game against Truman State and he's suddenly earned playing time and respect? I've seen the kid play more than the Truman State game and he's raw, he is being red shirted for a reason. How is he going to get minutes? Odum plays 30 minutes a game, Steve plays 25 to 30 minutes per game. Is it worth pulling a redshirt so a kid can get maybe, maybe 5 minutes per game? The answer is no... End of discussion.