Tennessee wide receiver Cedric Tillman underwent a procedure known as tightrope surgery on his left ankle last week, ESPN reported Thursday.
Tillman missed the Volunteers' win over Florida last week with a high ankle sprain.
No. 8 Tennessee (4-0) is off this week before a trip to LSU on Oct. 8. It's unknown how long Tillman might sit out.
"Obviously, we're a long way away from game time," Heupel said Wednesday of Tillman's availability for the LSU game. "We're hopeful that he will continue to make progress and be available when we go down there."
Tillman, a preseason All-SEC receiver, has caught 17 passes for 246 yards and a touchdown in three appearances this season. He posted 64 receptions for 1,081 yards and 12 touchdowns a year ago and earned All-SEC second-team honors.
--Field Level Media