Michigan cornerback Will Johnson, who missed the second half of the Wolverines' season with a turf toe injury, has suffered a hamstring injury that will keep him out of the school's pro day later this month.
Sources told ESPN's Jordan Reid that the injury isn't considered serious but that Johnson will not participate in the school's on-campus pro day March 21. Johnson is now scheduled to have a private workout April 14.
Johnson played in six games this past season -- he has not played in a game since October -- and finished the year with 14 tackles.