AP

When Antonio Cromartie fell to the ground with a non-contact knee injury, it didn’t look good for the Jets cornerback. On Monday, the Jets will find out exactly how bad it is.

That’s the day an MRI will be conducted, and a source with knowledge of the situation tells PFT that the team currently are bracing for a diagnosis involving injury to the ACL and/or MCL.

In many cases, an ACL injury can be detected by a lack of stability in the knee. But an MRI always is used to determine the exact extent of the damage.

Cromartie rejoined the Jets this year after a season with the Cardinals. Coupled with the return of Darrelle Revis, the Jets were believed to have one of the best secondaries in the game.