EAST RUTHERFORD, N.J. — The winless New York Giants are going to be without offensive catalyst Odell Beckham Jr. for the rest of the season.

The Giants announced Monday that Beckham will have surgery on his broken left ankle later this week, and Coach Ben McAdoo later said it will end the wide receiver’s season.

“It’s a sad situation,” McAdoo said.

Beckham was hurt late in the fourth quarter of Sunday’s 27-22 loss to the Los Angeles Chargers when cornerback Casey Hayward fell on his ankle and pinned it to the turf.

McAdoo did not know if the surgery could cause any long-term problems for the three-time Pro Bowler, who has led the Giants in receiving in each of his first three seasons.

Beckham was the last of four Giants’ receivers knocked out of the game.

Dwayne Harris, who also returns punts and kickoffs, will have surgery Tuesday for a broken foot.

Brandon Marshall and Sterling Shepard were hurt on the same series in the second quarter. Marshall underwent testing and examination Monday.

Shepard is listed as day to day.

McAdoo said the Giants have not finalized any roster moves, but re-signing Tavarres King, who was released early in the season, and signing Travis Rudolph off the practice squad seem likely. He added there are no plans at this point to re-sign fan favorite Victor Cruz, who was released after last season.

Beckham had 25 catches for 302 yards and three touchdowns this year, including a 48-yarder in the fourth quarter Sunday. He also had two 15-yard catches that set up Eli Manning’s 29-yard touchdown toss to Roger Lewis Jr. in the third quarter.

It has been a frustrating season for Beckham. He sprained his left ankle in a preseason game on Aug. 21, missed the season opener at Dallas and was limited against Detroit. He also was fined for pretending to urinate like a dog after a TD catch in Philadelphia on Sept. 24.

McAdoo knows the Giants (0-5) have basically no chance of making the playoffs.

“Everyone is disappointed, I am aware of it,” he said. “Everyone is irritated, I am aware of it. But my focus right now is trying to help with the personnel department to field a football team this week to give us a chance to prepare and win.”