Meh...everybody including the strength condition coaches have a hammy at this time of year. My guess is they get a bit sore from not using the muscles and so forth for the winter in the way they are using them now, so they take a bit of a slow down in training to ensure it doesn't turn into anything. If it comes out that there is a tear, worry. But a bit of reported soreness is nothing to worry about...yet.
That said, I am going to have a heck of a decision to make with this guy. I'm drafting at 8 in a PPR league, and he is a very tempting target there. I don't think he will make it back to me, so I'll have to decide on giving him up to go for possibly Jackson and Caddy/Jordan/Parker (or some hybrid of those guys), or take that stud PPR machine that is Steve Smith a bit too early. IF the hammy lingers it will help me to choose, but if it subsides I'm going to have a whopper on my hands.