I second this (or third) and as I said last season before the bowl..

..when you start thinking you can game the system to control when the injury bug strikes in this sport, it's probably time to look for a new line of work.

Of course every situation is slightly different, ie I'm good with a player who is already injured and doesn't want to risk aggravating it just before going pro, Ala Kyle Hamilton, but when perfectly healthy players skip games to dodge injury I think that is bad form.