NORMAN, Okla. — Michigan football could be without as many as four starters for tonight’s primetime showdown with Oklahoma.

Edge rusher Derrick Moore, tight end Marlin Klein, safety Rod Moore and offensive lineman Andrew Sprague have all been ruled as questionable for the top-25 showdown here at Memorial Stadium (7:30 p.m. ET, ABC).

Rod Moore isn’t a big surprise given his inactivity in the Wolverines’ season opener last week, but Klein, Derrick Moore and Sprague are.

Klein was Michigan’s biggest target in the 34-17 win over New Mexico, leading the team in targets (nine), receptions (six) and receiving yards (93) for freshman quarterback Bryce Underwood.

If he’s unable to go, sophomore Hogan Hansen could step into a bigger role in Michigan’s passing attack, though he too is listed as o

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