Robinson was knocked out of Saturday's 38-28 loss to Iowa with a shoulder injury. Robinson was hurt when linebacker Tyler Nielsen tackled him and defensive tackle Mike Daniels pounced on him in the third quarter, the second straight week that Robinson has been slowed down.
The Wolverines have a bye this week before playing Penn State on Oct. 30.
After opening the season with five sensational games, Robinson threw three interceptions in a 34-17 loss to Michigan State. He was 13 of 18 for 96 yards with an interception and touchdown, and ran 18 times for 105 yards against Iowa.