Redskins wide receiver Robert Davis catches a pass during Thursday night’s preseason opener against the Patriots. (Bob DeChiara/USA TODAY Sports)

RICHMOND — An MRI revealed Washington Redskins receiver Robert Davis suffered damage to the outside ligaments of his knee, but no major damage to his tibia, according to a person familiar with the results of the test.

Davis, who was carted off the practice field Saturday, will get additional X-rays and scans to determine whether surgery is necessary.

The 2017 sixth-round pick got tangled up with defenders while on the receiving end of an Alex Smith pass when the group hit the ground. Davis didn’t get up and was immediately treated by the medical staff. The cart came over soon after and Davis was taken inside the building.

There is optimism that Davis’ tibia is not broken and there also is relief within the organization that he did not tear the anterior cruciate ligament in his knee. (Earlier in the day, the Redskins placed second-round pick Derrius Guice on injured reserve with an ACL tear.)

Davis had put together a good offseason, dating back to summer workouts. He had improved his route-running and ball skills and was in a legitimate fight to be the No. 4 or No. 5 receiver. The 6-foot-3, 212-pounder had three catches for 37 yards in the 26-17 loss to the Patriots in the preseason opener.

Davis spent most of 2017 on the practice squad.

The Redskins placed two players on the injured reserve list earlier Sunday after MRIs showed that rookie running back Derrius Guice and tight end Manasseh Garner tore ACLs during the preseason game. The camp injuries are starting to pile up for a team that placed 23 players on injured reserve last season.

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