The Knicks rebounding momentum fell apart in a disappointing loss to Spurs

By playing without their two best rebounders, the typical Knicks strength disappeared.

Without Mitchell Robinson (load management) and Josh Hart (ankle), the Knicks haven’t dominated the glass — and they were pounded on the boards during their 134-132 loss to the Spurs on Wednesday in San Antonio.

The Spurs had 11 offensive rebounds and 23 second-chance points. The Knicks had just seven second-chance points.

“They had 11 offensive rebounds,” coach Mike Brown said. “I don’t know how you turn 11 offensive rebounds into 23 second-chance points. So our multiple effort wasn’t good. They got the rebound and then we didn’t fly around anymore. It’s tough when you have to give up an offensive rebound, but our inability to fly around and get the bodies and all that stuff gave them another advantage in second-chance points.”

Robinson will return for one game of the upcoming back-to-back Friday and Saturday at the Garden, The Post’s Stefan Bondy reported, and Hart should be back at least somewhat soon. But Robinson’s load management will continue throughout the season.

And if Hart isn’t on the court to make up for Robinson’s rebounding power, the Knicks are actually vulnerable in that area.

In the past two games, against the Hawks and Spurs, when both Robinson and Hart were out, the Knicks gave up a total of 41 second-chance points, ranking second in the NBA in that short stretch.

They only had 20 second chance points themselves.

On the season, the Knicks averaged 17.3 offensive rebounds per game – nearly the total of their past two games and fourth-most in the NBA. And they give up just 14.8 second-chance points per game – the 10th fewest in the NBA.

Robinson and Hart are the driving forces behind this. Without them, the Knicks need better contributions from others.

“They killed us on the offensive glass,” Miles McBride said after Wednesday’s game. “That takes effort and we have to solve it.”

Trae Young (right quad contusion) is questionable for the Hawks for Friday’s game. He missed the past two games. He missed 22 games earlier this year due to a sprained right MCL.