Tennessee is having to reshuffle its offensive line due to fifth-year senior Marcus Jackson’s injury.

Jackson, the Vols’ starter at left guard, has a torn bicep, and many have feared the worst over the last several days following 247Sports’ injury report.

Butch Jones confirmed those Tuesday. While speaking with the media, Jones said he isn’t sure if Jackson will return this season. Another player, Jashon Robertson, has requested to wear Jackson’s No. 75 jersey.

Tennessee is in a much better position this year to fight injuries on the offensive line, but losing a fifth-year senior is never ideal during fall camp. Jackson’s a proven player who the offense would have leaned on to help open holes for the talented backfield.

Hopefully for Tennessee’s sake, and Jackson’s too, he’ll be able to return during his senior season.

When asked about Jackson’s injury Monday, offensive coordinator Mike DeBord said it’s all about the next man up, although he never confirmed Jackson’s injury.

“Next man up,” DeBord said Monday. “No matter what position, whether it’s offense, defense or special teams, it doesn’t matter. The next guy’s gotta be ready to play. That’s what’s good right now in training camp with all the players getting reps at different positions. You never know when we may have to move somebody.”