From a distance which is where I'm viewing from, Foran's heart ain't in it and he's probably happy to give it away if he can get a $4M payout, His back and hamstring issues probably stem from poor training and preparation. Most people who have bad lower back issues will know that it mostly stems from tight hamstrings and calf muscles. I myself suffer from this and it gets worse when I don't stretch my hammys and calves often enough. Obviously I'm not a doctor and I don't know the actual situation with Foran, but as I said I have lower back issues and if Foran has lower back issues and hamstring issues ( which is confirmed ) that's what I'd say it would be. Unless he has some rare type of injury to his lower back I can't see him being medically retired.