Garrett Cooper, whose eight-year major league career was bookended by stops with the New York Yankees and Boston Red Sox, announced his immediate retirement Sunday on Twitter/X. ...Cooper retires with a career slash line of .265/.333/.427 with the Yankees (2017), Marlins (2018-23), Padres (2023), Chicago Cubs (2024) and Red Sox (2024). He debuted with the Yankees that summer, and impressed by hitting .326 (14 for 43) in a 13-game cameo. After the season, Cooper found himself on the move for the second time in fourth months. More news: Former MLB Outfielder Announces Immediate Retirement at 29Cooper was the primary designated hitter for the Marlins team that snuck into the 2020 playoffs, then swept the best-of-three Wild Card series against the Chicago Cubs in a stunning upset.