The Blue Jays signed Fleming to a minor-league contract Wednesday that includes an invitation to spring training, Alden Gonzalez of ESPN.com reports.
Fleming spent all of the 2025 season at Triple-A Tacoma in the Mariners organization, collecting a 4.91 ERA and 44:29 K:BB over 84.1 innings. The 29-year-old lefty has plenty of past experience as a starting pitcher but has primarily been a reliever the last three years, and that's likely how he'll be deployed in his projected destination of Triple-A Buffalo.