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Jeter Martinez Traded to Pittsburgh in Caleb Ferguson Trade
The Seattle Mariners traded right-handed pitching prospect Jeter Martinez to the Pirates in exchange for lefty reliever Caleb Ferguson, according to Adam Jude of the Seattle Times. Martinez is a 19-year-old who has spent all of the 2025 season starting at Low-A, where he has a 6.18 ERA, 1.61 WHIP, and a 7.7% K-BB% in 62.2 innings. The walk rates have been out of control in Martinez's short time in the minor leagues, and Fangraphs' present command grade of 20 reflects that. He has a high 90s fastball to go with a strong slider, which is a potentially strong foundation for the right-hander. His future will be determined by his ability to throw strikes consistently, and he could eventually turn into a reliever with electric strikeout stuff.
Source: Adam Jude
Source: Adam Jude
