ARLINGTON, Texas -- The Dallas Cowboys fear wide receiver Jonathan Mingo suffered an injury to the posterior cruciate ligament in his right knee in the third quarter of Saturday's 31-13 loss to the Baltimore Ravens , sources told ESPN.

One play after a 49-yard reception, Mingo leaped for a Joe Milton III pass near the end zone and landed awkwardly. He limped to the sideline, went into the medical tent and was immediately ruled out.

After the game, coach Brian Schottenheimer said Mingo was among a number of players that will undergo more testing on Sunday. An MRI will help determine the severity of the injury, but it is possible he will need multiple weeks to get healthy, which would impact the Cowboys' decisions on the 53-man roster to start the season.

Last year, the Cowboys ac

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