Donovan Warren said Boren leaving to play for the rival was “disrespectful,” and David Moosman said he had no relationship with Boren even when the two were teammates.
UM will host Rose Bowl-bound OSU on Saturday needing a win to become bowl eligible.
Boren, of Pickerington, Ohio, is a starting guard, and his brother, Zach, is a freshman fullback for the Buckeyes.
In other news, Brandon Minor (shoulder) is day-to-day, according to coach Rich Rodriguez. Rodriguez said the past two seasons have probably been the most taxing of his career.