Pete Alonso’s 300th Home Run Sinks Former Team as Mets Pitcher Bristles at Fan Reaction

Pete Alonso delivered a painful reminder to his former team on Tuesday night, hitting the 300th home run of his career to tie the game against the New York Mets in the top of the ninth inning at Citi Field. The Baltimore Orioles went on to win 7-5, dropping the Mets to 69-82 on the season while Baltimore improved to 74-78.

Alonso, who spent years as a cornerstone of the Mets before signing with Baltimore in free agency, was playing his first series back in Queens. After the game-tying blast, he slammed his bat and rounded the bases as Mets fans cheered him on, ultimately giving him a curtain call.

The gesture reflected lingering frustration among Mets fans over the front office’s decision to let Alonso leave last offseason. Alonso had said in September that he “definitely thought about” staying with the Mets but received an offer from the Orioles he couldn’t turn down.

“I appreciate all the support for all the years I’ve been here, all the life I’ve lived here,” Alonso said after the game. “Obviously, they’re recognizing that and they appreciate that. It’s a two-way street. Really appreciate it.”

The warm reception for an opposing player did not sit well with Mets pitcher Sean Manaea, who started the game, allowing two runs on solo home runs across 5.1 innings while striking out six.

“As the 2026 Mets, I know we have definitely underperformed. But we are — the guys in here work their (tails) off every single day and to have that kind of reaction to an opposing player — could be anybody — is crazy to me,” Manaea said. “Again, I’ve got nothing but respect for Pete. But yeah, just never seen anything like that before. Pete’s not here. He’s just not here. So, I know everybody loves him. He’s the man. But, yeah, he’s not here. So, to see the reaction from the fans like that, I don’t know, it’s just different.”

Alonso became the first player in MLB history to hit his 300th career home run against a team for which he had played 1,000 or more games. He also received a standing ovation before his first at-bat of the series on Monday night.

The loss leaves the Mets mired at the bottom of the National League East, 2.5 games behind the Washington Nationals for fourth place, as the club heads toward the end of a disappointing season.