Former Red Sox, Yankees 1B Retiring After 8 MLB Seasons

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A former member of the Boston Red Sox quietly announced his retirement from Major League Baseball.
With the playoffs beginning, that has obviously been the biggest talking point across the league. When you have the Red Sox and the New York Yankees facing off in a playoff series, that's obviously going to be among the things talked about the most in the league. The Red Sox and Yankees have both won one game apiece as of writing with the deciding Game 3 set to take place on Thursday night.
The playoffs have gotten pretty much every headline this week, but a former member of both the Red Sox and Yankees announced their retirement this week. Former first baseman and outfielder Garrett Cooper played eight big league seasons and announced his retirement on social media earlier in the week.
The former Red Sox infielder is retiring

"After 13 years, including 8 unforgettable years in the Big Leagues, it’s time to officially hang up my cleats," Cooper said. "Baseball has been my life for as long as I can remember, I’m grateful for what it gave me, I’m proud of what I gave back. Here’s to what’s next"
After 13 years, including 8 unforgettable years in the Big Leagues, it’s time to officially hang up my cleats. Baseball has been my life for as long as I can remember, I’m grateful for what it gave me, I’m proud of what I gave back. Here’s to what’s next 🤟🏻 pic.twitter.com/go9PZoRgTI
— Garrett Cooper (@CoopaLoop1) September 29, 2025
Cooper was an All-Star once throughout his eight-year big leageu career and spent time with the Yankees, Miami Marlins, San Diego Padres, Chicago Cubs, and the Red Sox. He actually began his big league career as a member of the Yankees back in 2017 and played his final big league game in 2024 with the Red Sox. He came over to Boston last year with Triston Casas injured. He only played in 24 games with the organization.
The 34-year-old had the best season of his career in 2022 with the Marlins and Padres. He clubbed 17 home runs to go along with 61 RBIs and a .251/.304/.419 slash line in 123 games. Cooper was an All-Star in 2022. That year, he had nine homers and 50 RBIs for the Marlins.
Cooper played eight years in Major Leageu Baseball. The Red Sox and Yankees are duking it out in a playoff series right now. It's ironic that a guy who played for both organizations opted to hang up his cleats at the same time.
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Patrick McAvoy's experiences include local and national sports coverage at the New England Sports Network with a focus on baseball and basketball. Outside of journalism, Patrick received an MBA at Brandeis University. For all business/marketing inquiries regarding Boston Red Sox On SI, please reach out to Scott Neville: scottneville21@gmail.com
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