Defensive end Brad Bars ruptured his achilles tendon earlier this week during a workout, which will cause him to miss the entire 2013 football season, the program announced Thursday afternoon through a press release.

Bars is a redshirt junior and will have another year of eligibility after this season. He played in eight games last year, including the Navy game, where he recorded two tackles.

Bars was coming off a strong Blue-White game performance that saw him record two sacks. He was listed as a backup to starting defensive end C.J. Olaniyan on a June depth chart but was still expected to see a decent amount of snaps this upcoming season, even if he did not start.

Bars’ rehabilitation is expected to take 4-6 months, according to the team’s physician, Dr. Peter Seidenberg. Bars will be operated on by the team’s orthopedic physician, Dr. Scott Lynch, within the coming days.