Irvin, the son of former Hurricanes star receiver and Pro Football Hall of Famer Michael Irvin, "just hasn't done what's he's supposed to do off the field and until he does, we won't let him play," Richt said.
Irvin Jr. wasn't on the sideline for Miami's home win against Syracuse on Saturday. Previously, he had been suspended for the Russell Athletic Bowl at the end of last season because of an unspecified violation of team rules.
Miami was hoping Irvin would help form a prolific tight end tandem with Christopher Herndon, much like 2017 NFL Draft first-rounder David Njoku and Herndon did last season. But while Herndon has a team-high 28 catches this season, Irvin has three catches for 39 yards.
Redshirt sophomore Scott Patchan, recently converted from defensive end, will back up Herndon.
No. 8 Miami (6-0, 4-0 ACC) plays at North Carolina (1-7, 0-5) on Saturday.