The Cleveland Guardians have made several roster moves as they approach the end of the MLB regular season, promoting 23-year-old right-handed pitcher Andrew Walters from Triple-A Columbus while placing veteran starter Alex Cobb on the 15-day injured list due to a blister. Cobb had a solid start to his Guardians career, posting a 2.76 ERA in three games, but has been plagued by injuries. In his major league debut, Walters impressed by allowing just one unearned run in the ninth inning against the Tampa Bay Rays, showcasing a fastball that reached up to 97 mph. The Guardians also promoted infielder/outfielder Angel Martinez to the Major League roster, further strengthening their lineup as they lead the American League Central Division. As the team seeks to solidify its bullpen for a playoff push, Walters has been recognized as a promising prospect after a successful minor league season. Cleveland continues to adapt its pitching staff with just weeks left in the regular season, aiming for a strong finish.