Sources: Ankle injury could sideline Giants' Odell Beckham for opener vs. Cowboys.

ByJORDAN RAANAN AND DAN GRAZIANO
August 22, 2017, 11:52 PM

— -- Odell Beckham Jr.'s ankle injury could potentially keep New York Giants wide receiver out of the season opener against the Dallas Cowboys, sources told ESPN's Jordan Raanan and Dan Graziano.

The Giants open their season in less than three weeks on the road Sept. 10 against the Cowboys.

It's "not out of the question he could miss a week or two of the regular season," according to one source.

Beckham sprained his ankle Monday night against the Cleveland Browns. An X-ray during the game was negative. He underwent an MRI on Tuesday that confirmed a sprained ankle.

Despite jogging into the locker room and expressing optimism after the game, Beckham felt "very sore" on Tuesday, according to another source. He's likely to miss the Giants' final two preseason games.

Coach Ben McAdoo said Beckham had an ankle injury and the team would see how he responds to treatment.