Sprained ankle sends Robinson back to bench

Another injury aggravation has landed a key Knicks rotation player back on the bench.

The Knicks ruled former starting center Mitchell Robinson out ahead of tipoff against the Thunder on Sunday with a sprained left ankle.

It’s the same ankle the rim-protecting big man suffered a stress fracture on in early December, a “wrong step” ultimately requiring surgery sidelining the seven-footer for three-and-ahalf months.

Robinson returned to the rotation in Wednesday’s road victory over the Raptors, playing 12 minutes in a 44-point rout.

He then logged 20 minutes in an overtime loss to the Spurs on Friday, including all five minutes of the extra period after Isaiah Hartenstein fouled out.

Tom Thibodeau said Robinson “tweaked” against the Spurs. Thibodeau said the team will see how the s ankle feels today before making any determination about his status for Tuesday’s road matchup against the Heat.

The Knicks’ coach also offered little update on injured stars Julius Randle and OG Anunoby.

Randle has yet to return to action after dislocating his shoulder in a Jan. 27 matchup against the Heat.

He left the rotation at the same time as Anunoby, whose right elbow inflammation surfaced after the victory over Miami.

Thibodeau didn’t provide any signs of progress for the pair.

“Basically the same,” he said, which means Randle still cannot take contact or participate in scrimmages. “Just keep doing what he’s doing (attacking his rebab), day to day. You never know when it turns. That’s basically the approach we take. Rehab is really your game, so put everything you have into that. And eventually you’ll get there; you can’t get discouraged; just keep working at it. The other guys, they have a job to do.”

There hasn’t been much progress on the Anunoby injury return front, either.

Anunoby underwent right elbow surgery in early February, then returned to play three games — March 17 vs Philadelphia, March 14 at Portland, March 16 at Sacramento — before leaving the team amid a four-game road trip due to a flare-up in his shooting elbow.

“He hasn’t taken any contact since he last played,” Thibodeau said two weeks after Anunoby’s last game.

Sunday’s matchup against the Thunder marked Randle’s 28th straight missed game and the 25th in the last 28 for Anunoby.

The Knicks must be careful managing injuries of key rotation players down the final leg of the regular season.

Anunoby (elbow), Robinson (ankle) and Hartenstein (Achilles) are dealing with recurring issues, and the Knicks will have to protect the bulldozing Randle (shoulder) from himself when he returns to the floor.