‘“I think at 13 weeks, you can start running and stuff,” Miller said Monday as the Bills cleaned out their lockers. “Honestly, I walk around and I do rehab and stuff and where I am mentally, I just try not to think about it. I go through my rehab. I try to be as bright as I possibly can. I think your mental state is a huge part of any type of rehab like this. It’s not like a four-week process where you’ve just got to do this and do that. They say it’s nine months. Hopefully, I can do it in six or seven or something like that. Nine months would put me right at August, so right at the beginning of training camp, I should be ready to go.”’