The MLB offseason is just getting underway after the Atlanta Braves won the World Series less than 24 hours ago, and there’s already massive, stunning news in the baseball world.

San Francisco Giants catcher Buster Posey will announce his retirement from baseball on Thursday, according to Giants beat writer Andrew Baggarly of The Athletic.

Jon Heyman of MLB Network confirms the news.

Posey is a seven-time All-Star, three-time World Series champion, and he won the NL MVP and batting title in 2012. He’s also a two-time NL Comeback Player of the Year, including in 2021.

And that last factoid is what makes this news so shocking. Posey is coming off a sensational 2021 season in which he had a .304/.390/.499 slash line and was worth 4.9. wins above replacement per FanGraphs- the highest WAR for a catcher in baseball this season.

The 34-year-old clearly has plenty of excellent baseball ability left, but he’s seemingly decided to hang it up. Maybe he wants to go out at a high level while still his body is still feeling well enough at a treacherous, physically demanding catcher position. Maybe it’s related to a personal matter or he just wants to spend more time with his family. Maybe it’s an entirely different reason altogether.

Whatever the case, Posey is seemingly retiring, and that’s a huge loss for both the Giants (winners of an MLB-best 107 games this season) and the game of baseball.

Congrats to Posey on an amazing career.

And here’s a sampling of the reaction to the Posey retirement news:

About Matt Clapp

Matt is an editor at The Comeback. He attended Colorado State University, wishes he was Saved by the Bell's Zack Morris, and idolizes Larry David. And loves pizza and dogs because obviously.

He can be followed on Twitter at @Matt2Clapp (also @TheBlogfines for Cubs/MLB tweets and @DaBearNecess for Bears/NFL tweets), and can be reached by email at mclapp@thecomeback.com.