The source added that if the Super Bowl were this week, he believes Conner could have and would have played, giving the Steelers some hope that the NFL's fifth-leading rusher has a reasonable chance to play in next Sunday's big AFC matchup.
Conner suffered the injury during the fourth quarter of last Sunday night's loss to the Chargers. Some sources believe he has a high ankle sprain, though different sprains sideline different players for varying amounts of time.
Conner has rushed for 909 yards and 12 touchdowns, the second most in the NFL this season. He also has emerged as a weapon in Pittsburgh's passing game, hauling in 52 receptions -- third most on the team -- for 467 yards.