Tyler Cleveland, a 26-year-old submariner for the Seattle Mariners, is ranked #15 in their prospect list after an impressive 2025 season with a 0.87 ERA over 51.2 innings across High-A and Double-A. Known for his unique pitching style, he relies on a three-pitch mix, featuring a sinker, sweeping slider, and changeup, with moderate strikeout and walk rates. While not flashy, Cleveland’s performance suggests he could be a valuable middle reliever for the Mariners. His ability to provide a change of pace in a bullpen dominated by high-velocity pitchers makes him a player to watch this season.
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Mariners Prospect Rankings: RHP Tyler Cleveland
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