The dynamic runner was never the same after suffering a high-ankle sprain in Week 4, but Spiller told the team's official website that he rolled into OTAs this week at full strength.
"I don't feel nothing, I feel great," Spiller said. "This is the best I've felt since 2012 when I had that great year. The ankle feels wonderful. I just have to keep doing what I need to do to stay healthy this whole season and try to go out there and make plays."
While the Bills likely have tabled the concept of forcing Spiller into a workhorse role, look for playcaller Nathaniel Hackett to help the back exceed his 394 snaps from last season as a weapon primarily used in space.
In the final year of his rookie deal, Spiller believes he's in fine position to exceed the 1,700 yards from scrimmage he dialed up in 2012.
After Buffalo rejected an Eagles trade inquiry into Spiller back in April, it's clear the Bills intend to keep him around for the long haul. Maybe they see what we see: one of the league's top bounce-back candidates at the running back position.