ANN ARBOR -- Coming off the bye week, Michigan has two potential game-changing players and a starting offensive lineman questionable.
And Jim Harbaugh isn't giving updates.
The head coach of the fifth-ranked Wolverines remained mum on the status of defensive end Rashan Gary, wide receiver Tarik Black and right tackle Juwann Bushell-Beatty.
-- On Gary, who has missed the last three games with a joint injury in his shoulder, it's unclear whether he will be able to suit up on Saturday.
"Don't know," Gary said. "Don't have an update for you."
Last week, Gary's mother, Jennifer Coney-Shepherd, took to Facebook to issue an explanation for her absent son, revealing that he had been playing through the injury since the start of the season and he wouldn't return until he was completely healthy.