CINCINNATI — An MRI test on Friday confirmed that Bengals defensive tackle Geno Atkins tore the anterior cruciate ligament in his right knee, leaving the AFC North leaders without another star player on defense.

The All-Pro lineman got the leg bent under him while trying to make a tackle during the first half of a 22-20 overtime loss at Miami on Thursday night. The medical staff initially thought he’d torn the ligament, and the test a day later in Cincinnati confirmed it.