Peterson could play for Vikings

Minnesota’s three best offensive players, running back Adrian Peterson, receiver Percy Harvin and left guard Steve Hutchinson, are listed as questionable for Sunday’s game against the Buffalo Bills.

Peterson, the third-leading rusher in the NFL, has a sprained right ankle; Hutchinson, the perennial Pro Bowl left guard, has a broken right thumb; Harvin, their most versatile player, saw a doctor Friday for migraine headaches.

Coach Leslie Frazier said he was optimistic Peterson will play after he practiced on a limited basis Friday.

Quick kicks

Steelers QB Ben Roethlisberger hobbled through practice with a protective shoe on his injured right foot, but it’s not approved for games and he’s listed as questionable for Sunday night’s game in Baltimore. … Jets safety Jim Leonhard has a broken right leg that will require surgery and likely sideline him the rest of the season.… Carolina placed backup QB Tony Pike on injured reserve with a shoulder problem and promoted Keith Null from the practice squad to back up Jimmy Clausen at Seattle.