Andre Ellington injury: RB injures right knee, MRI coming

The Arizona Cardinals might be testing the depth at running back early in the season. After rushing for 69 yards and a touchdown on 12 carries and catching one pass for seven yards, he had to leave the game with a knee injury.

With less than 12 minutes left in the game, Ellington rushed for two yards and appeared to injure his knee. It appeared to be a non-contact injury.

The announcement made in the press box was he injured his right knee, but those watching the game believed it was his left.

He did not return to the game.

After the 31-19 win, head coach Bruce Arians said the severity of the injury was not known, but they believe it is his PCL (posterior cruciate ligament). It was confirmed the injury was to his right knee -- not his left one. Arians said Ellington told him he was fine.

Reporter Tim Ring tweeted he saw Ellington walking without a limp in the locker room. Ellington also gave him a thumbs up.

Ellington will have an MRI and there will perhaps be an announcement on Monday, when Arians addresses the media.

After Ellington left the game, Chris Johnson carried the ball seven times for 30 yards. He had 37 yards on 10 carries for the game.