New York Mets closer Edwin Díaz is facing a 10-game suspension after being ejected from the team’s 5-2 win over the Chicago Cubs on Sunday night.

The right-hander came on in the ninth to try to seal the victory for the Mets, but was tossed by third-base umpire Vic Carapazza before throwing a pitch after an inspection of his glove and throwing hand.

Both Díaz and manager Carlos Mendoza said the umpire said he thought the pitcher had too much of a combination of rosin, sweat and dirt on his throwing hand.

“The rules are the rules and they made the decision to throw him out,” Mendoza said.

Carapazza, the crew chief, said in a pool report after game it “definitely wasn’t rosin and sweat” on Díaz’s hand.

“We’ve checked thousands of these,” Carapazza said. “I know what that feeling is. This was very sticky.”

Díaz, who said he was “really surprised” by the ejection, was not certain whether he’ll appeal the suspension.

“I use the same thing always,” Díaz said. “I rub rosin and sweat and put my hand in the dirt a little bit to get a grip on the ball.”

He’s the third Mets pitcher to be ejected for such an offense in the last year.

Drew Smith, who was ejected and suspended 10 games last year for a similar offense, got two outs in place of Díaz. Jake Diekman then came in and struck out pinch-hitter Patrick Wisdom for his third save for the Mets, who have won four straight series.

New York has won 10 of 13 and is 13-6 in June and might need to find a temporary closer for the next two weeks. The Mets begin a two-game series against the visiting Yankees on Tuesday before hosting Houston for three games.

“Look, we’ve been through a lot this year,” Mendoza said. “We’ll find a way to get through it, you know? We’ll continue to piece it together and, yeah, guys are going to have to step up. And I’m pretty confident that we’ll get guys here that are going to be able to get us to the finish line when he’s out.”