Scouting Report: Jose Herrera

Summary

José A. Ferrer is a left-handed reliever for the Seattle Mariners who was acquired in an offseason trade from the Washington Nationals. Through early May 2026, he has emerged as one of the most valuable arms in the Mariners' bullpen despite significant injuries to other key relievers. Ferrer leads MLB in relief appearances (21) and ranks among the top-10 most valuable relievers in the AL per FanGraphs metrics. He posted a 1.80 ERA with 16 strikeouts in 20 innings pitched, along with 4 holds and 2 saves. He was recently placed on the paternity list (3-day absence) to welcome a new child to his family. His performance against Atlanta was particularly impressive, appearing in three consecutive games with 3.1 scoreless innings, 1 hit, 0 walks, 4 strikeouts, and 1 save. The trade for Ferrer (sending catcher Harry Ford to Washington) is already showing early payoff.