The Knicks were not the most depleted team on the floor Saturday night in Milwaukee, but the injury news grew worse for them as the night progressed.

Already playing without All-Star forward Julius Randle, the Knicks lost starting center Mitchell Robinson for an extended period for a second time this season. Robinson broke his right foot during the first quarter to put a heavy damper on the Knicks’ 102-96 win over the injury-riddled Bucks, who were missing two-time MVP Giannis Antetokounmpo and three other starters.

“Obviously, they care about each other a lot. Mitchell’s been terrific for us, so you hate to see it,” coach Tom Thibodeau said after the game. “It’s a very close-knit group. You feel for Mitchell because of all the work he’s put in. … You feel for a teammate and that’s part of the game. You have to deal with it as best as you can.”

Alec Burks scored 21 points with 10 rebounds and Derrick Rose contributed 13 points in 29 minutes in his return to the Knicks’ lineup for the first time since Feb. 28 following a positive COVID-19 result. RJ Barrett also scored 21 points and Immanuel Quickley (13) nailed four 3-pointers as the Knicks moved two games over .500 (24-22) for the first time since they were 5-3 on Jan. 6.

Still, the Knicks’ third straight win proved costly. Robinson was playing only his fourth game since returning to the lineup last Sunday after missing 15 games following surgery for a fractured right hand. He hobbled off in the first quarter after landing awkwardly with what the team later announced was a fractured bone in his right foot.

Rose was unaware of the severity of Robinson’s injury and got choked up when informed during his postgame interview on MSG.

“For someone like him, seeing how hard he worked to get back, for this to happen, it just sucks,” Rose said.

Robinson had sprained his left ankle in his first game since Feb. 12 last Sunday against the 76ers, but he remained in the lineup for the next two wins against the Wizards.

“It’s tough. I feel for him,” Barrett said. “He worked so hard to get back, to see him go down again, man, it hurts us, it hurts the team. But we’re gonna be with him every step of the way until he gets back.”

Before the game, The Post had reported that the Knicks no longer were likely to pursue former All-Star center Andre Drummond, who was bought out Friday by the Cavaliers, because they preferred to stick with the 22-year-old Robinson and save their cap space for the summer.

The Knicks also have reservations about whether Drummond would be a strong fit alongside Randle.

Because Randle was out for the first time this season with a thigh contusion, suffered in Thursday’s comeback win over the Wizards at the Garden, Taj Gibson started alongside Robinson in the frontcourt. Gibson combined with Nerlens Noel for seven blocked shots.

“Veteran experience. And then we’ll go from there,” Thibodeau said of the plans to replace Robinson. “We’ll talk about it. I’m sure [team president] Leon [Rose] and his staff will have some thoughts. Obviously I haven’t had a chance to visit with them yet.”

The shorthanded Bucks were without five of their top six scorers, most notably Antetokounmpo, who sat with a sprained left knee. Khris Middleton (hip), Jrue Holiday (knee), Donte DiVincenzo (foot), Bobby Portis (health and safety) and P.J. Tucker (calf) also were out for Milwaukee (29-16).

Antetokounmpo’s brother, Thanasis, a former Knicks draft pick, scored a career-high 23 points and Jordan Nwora had 21 for the Bucks, who played a zone defense practically the entire game.

The Knicks carried an 81-77 advantage through three quarters and led by as many as 11 early in the fourth, but Brook Lopez’s dunk with 1:35 remaining capped an 11-2 Milwaukee run for a 96-96 tie. Burks’ 3-pointer 16 seconds later vaulted the Knicks back ahead, giving him at least 20 points for a fifth consecutive game.

“You go into a game and you’re planning for all possibilities,” Thibodeau said. “It comes down to your ability to rise above whatever challenges you’re facing and find a way to win.”