I assume you saw this:
Wolverines WR Manningham out vs. Penn State
ESPN.com news services
Fourth-ranked Michigan will be without its most dynamic receiver at Happy Valley against Penn State on Saturday night.
Mario Manningham had arthroscopic knee surgery Tuesday and is out for the Wolverines' game against the Nittany Lions, coach Lloyd Carr said.
The Detroit News, citing sources close to the situation, reported on Monday that the Manningham's surgery was to repair a partially torn meniscus in his knee. The paper also said Manningham may have a partial tear of the medial collateral ligament in the knee.
ESPN's Joe Schad reports Manningham suffered the knee injury in last week's 31-13 win over Michigan State when he had three catches, two touchdowns and 75 receiving yards.
A native of Warren, Ohio, Manningham was named the Big Ten Offensive Player of the Week in consecutive weeks last month after combining for 250 yards and five TDs in victories over Notre Dame and Wisconsin. He has 24 catches for 527 yards and nine TDs for the Wolverines (6-0).
With Manningham out, junior
Adrian Arrington, who has 12 catches for 195 yards and three scores this season, and little-used freshman Greg Matthews likely will see more deep balls, with
Steve Breaston remaining the primary target for short passes.