After he got injured, it was reported he would be back in 3-4 weeks, but I hear he says he is no where near ready. Do you have an idea of when he could return? Do you expect any limitations once he returns?
It's always a crapshoot with these type of situations. Put it this way, there is no way I am "banking" on him returning anytime soon. There are a ton of viable free agent LBs available in most leagues. Go out and get one now.