Michigan offensive coordinator Josh Gattis speaks about building his relationship with coach Jim Harbaugh during recruiting trips, March 22, 2019. Detroit Free Press
The Free Press confirmed Michigan Wolverines receiver Oliver Martin has entered the transfer portal.
Martin's name was entered into the portal Wednesday evening.
A Michigan spokesperson did not immediately respond to comment.
Martin, a 6-foot-1, 200-pound redshirt sophomore from Coralville, Iowa, went through spring ball as one of the team's few healthy scholarship receivers.