Notebook: Starting cornerback spot open for competition between J.T. Floyd, Boubacar Cissoko

“We’re going to challenge a few guys defensively and get some other guys some reps and see who’s playing the best, try to get the best 11” on the field, Rodriguez said. “Corner’s one of them. (Donovan Warren’s) been playing very, very well, but the other corner position’s wide open.”

Cissoko was benched late in the first quarter of last week’s win over Indiana after Tandon Doss ran by him for a 56-yard gain. Floyd, a redshirt freshman, made four tackles in the most extensive playing time of his career.

Rodriguez also brought up true freshman Justin Turner’s name unprompted Monday for playing time at cornerback. Turner, the No. 2 recruit in Michigan’s 2009 class, has not played this year.

“He gets better every week, so he gives us a chance there as well,” Rodriguez said. “It’s going to be a competitive situation, and I think it needs to be.”

Injury update Regular center David Molk is using a bone stimulator to help his broken foot heal, Rodriguez said.

Molk underwent surgery to insert a pin in his foot last week and is expected to miss another three to five games. David Moosman started in his place against Indiana and had several bad snaps, but is expected to play again against MSU.

“Knowing David, he has a great pain tolerance and he’ll be out as soon as he can,” Rodriguez said. “But we’re not going to put him out there with any risk of further injury.”

Special-teams stalwart Zach Johnson sprained his shoulder against Indiana and will miss “a few weeks,” Rodriguez said.

Safety Mike Williams, who missed the Indiana game, is expected to return against the Spartans.

More on Moose Despite his snap issues, Rodriguez said Moosman played well against Indiana.

“Blocking wise and making the calls and doing that, he was pretty good,” Rodriguez said. “A few snaps may paint a different picture, but outside of that - I think we lost 70-some yards on some snap issues - David played pretty well. “

Rocko Khoury and Tim McAvoy will be the backup centers this week.

Hagerup, up and away ESPN reported over the weekend that prep punter Will Hagerup committed to Michigan over Ohio State and Wisconsin. The commitment is Michigan’s first in this recruiting class by a player also pursued by the Buckeyes, ESPN reported.

Hagerup will replace Zoltan Mesko, a four-year starter, next year.