Shady's availability on Sunday will be a "game-time decision", according to coach Rex Ryan.
Bills running back LeSean McCoy is listed as questionable to play against the Dolphins. The league's second-leading rusher had been sidelined with a hamstring injury since Wednesday, but returned to practice in a limited capacity on Friday.
"I was very limited today," McCoy added. "We'll see how it feels Sunday. Just trying to be smart."
If McCoy is unable to play on Sunday, then backup Mike Gillislee will get the bulk of the carries in his place against Miami's second-worst rush defense.