Huascar Brazobans ninth-inning entry gaffe nearly costs Mets

The Mets bullpen is such a mess, they can’t even decide who’s pitching.Instead of Devin Williams — who’s already had enough problems settling in as the closer — starting the top of the ninth with a three-run lead, he was forced to turn around and head back to the bullpen because Huascar Brazobán — who allowed a game-tying grand slam before finishing the eighth — thought he was still in the game and crossed the foul line, which forced him to have to face a batter.Join Post Sports+ for exciting subscriber-only features, including real-time texting with Mike Puma about the inside buzz on the Mets.

Carlos Mendoza said there was a misunderstanding and Brazobán was told he would start the ninth if the game was tied, but that Williams would come in if the Mets scored in the bottom of the eighth — which they did.Brazobán said through an interpreter he was still frustrated about allowing the grand slam and “was on autopilot and went out there.”The right-hander didn’t realize his mistake, he said, until the flashing lights and music that accompany pitching changes began.“I felt bad [and] a little bit embarrassed because I didn’t fully pay attention,’’ Brazobán said.He got Austin Martin for the first out before Williams finally was summoned and struggled again before he finally closed the 10-8 win.“I speak Spanish and need to make sure he gets the message,’’ Mendoza said of Brazobán.Mark Vientos probably won’t be quite as aggressive on the basepaths going forward.After making a stunning baserunning mistake by blowing past third base coach Tim Leiper’s very clear stop sign while trying to score on Marcus Semien’s double to the wall in the sixth inning of Wednesday’s win over Minnesota and then insisting he wouldn’t do anything differently, the slow-footed Vientos got a dose of reality from Mendoza.“It was addressed,’’ the manager said before Vientos was back at first base Thursday.“We handled it.

I talked to him.W...