NEW YORK — Mets closer Edwin Díaz signaled to his bench after winding up to throw a pitch at Philadelphia Phillies catcher J.T. Realmuto. After a brief consultation with manager Carlos Mendoza and trainers, the right-hander was removed from the game.

After the Mets’ 4-3 win, completing the sweep of the Phillies on Wednesday, Mendoza revealed that Díaz was experiencing “cramping” in his left hip.

“We did all the tests … and everything was fine,” Díaz told reporters after the game. “In the fastball I threw to Realmuto, I feel like my hip got locked up.”

Díaz explains that he was having difficulty lifting his leg to come set before delivering a pitch. So he continued to step off the mound to reset his wind-up.

Before Realmuto’s at-bat, Díaz says he was feeling “fine.”

The veteran closer has never felt his leg lock up before Wednesday. He elaborated on something that happened with a team trainer on Tuesday that might have caused this to occur.

“I was working with the trainer to get ready for the game (and) I was watching my leg and … the right one (was) longer than the left one,” Díaz explained. “So I asked him if that was normal, and he said, ‘No.’ So he (worked) on my hips right away.”

What caused this to occur? Díaz couldn’t say.

Díaz had pitched a clean ninth inning before coming back out for the 10th inning, where he struck out the lead-off hitter before allowing an RBI single to right fielder Nick Castellanos.

Right-hander Max Kranick entered the game to replace Díaz.

Asked if he’ll be ready to pitch on Friday, when the Mets kick off a four-game set against the Washington Nationals, Díaz was non-committal.

“As of right now, let’s see how we feel tomorrow,’ Díaz said. ”I feel strong. We did some work on my hip, and I was feeling better after. Let’s see how I feel on Friday.”