The Maryland football team will be without defensive end Andre Monroe for the rest of the season because of a knee injury, Coach Randy Edsall revealed on Tuesday. Edsall also said nearly a dozen other players, including a handful of starters, are nursing ailments with the opener in a week and half.

Monroe injured his left leg last week running sprints, and Edsall said doctors determined surgery would be required. The sophomore who was in line to be the starting right defensive end will have the operation on Thursday, one day before quarterback C.J. Brown is scheduled to have his torn right ACL repaired.

Brown was injured on Aug. 14 when he planted his right leg to make a cut and his knee buckled. The junior was untouched on the play, leaving freshman Perry Hills as the starter and classmate Caleb Rowe as his backup.

“It’s amazing,” Edsall said. “A lot of the issues that we have haven’t been contact type situations. Even the ones we that we might have had from a contact situation . . . it wasn’t anything that was violent or anything like that.”

Depth at defensive end also dwindled considerably with the news Keith Bowers may miss three weeks, Edsall said, with an undisclosed injury. Bowers had an irregular heartbeat that forced him to miss almost all of spring practice.

Isaiah Ross, another defensive end, has a sore hamstring Edsall initially indicated would keep him out indefinitely before saying perhaps it could become a day-to-day situation.

The defense overall has absorbed significant thinning of its ranks because of injury, including safety Matt Robinson and cornerback A.J. Hendy. Robinson, a starter, is out for at least two more weeks with a strained labrum in his left shoulder, and Hendy could miss a month, Edsall said, with a ankle sprain.

The defensive backfield also will be without potential starting cornerback Isaac Goins for three weeks because of mononucleosis.

Linebacker Kenny Tate has a sore left knee and is scheduled to meet with doctors in the near future. Tate sat out Saturday’s scrimmage and has been in and out of the lineup during training camp as he recovers from surgery on his right knee.

Place kicker Nick Ferrara is day-to-day, according to Edsall, with an undisclosed injury, and guard Josh Cary may miss three more weeks with a sore knee.

“You want all those guys to get healthy as soon as they can,” Edsall said. “But you just get the guys that are behind them ready to play. That saying that we have is everybody is really one or two plays away from playing, and they have to make sure they’re mentally and physically prepared to step up and play at any time.”