Mariners Open to Trading Emerson Hancock as Seattle Searches for Offensive Boost
The Seattle Mariners are reportedly prepared to make right-handed pitcher Emerson Hancock available in trade discussions as they look to strengthen their lineup before the MLB trade deadline. According to reports, Seattle has informed rival clubs that Hancock could be acquired if the right deal presents itself, highlighting the organization’s willingness to use its pitching depth to address its offensive shortcomings.
Although the Mariners enter this stage of the season with a disappointing 51-52 record, they remain firmly in the race for the American League West title. Sitting just half a game behind the Texas Rangers, Seattle has reasons to believe it can contend. The club owns a positive run differential of +17, significantly better than Texas’ -30, suggesting its overall performance has been stronger than its record indicates. With the postseason still within reach, the Mariners are expected to be active buyers before the deadline.
Seattle’s willingness to discuss Hancock stems from its remarkable pitching depth rather than a desire to weaken its rotation. The team already boasts one of baseball’s strongest groups of starting pitchers, featuring Logan Gilbert, George Kirby, Bryan Woo, Bryce Miller, Luis Castillo, and Hancock. Beyond the major league roster, the Mariners also have elite pitching prospects Kade Anderson and Ryan Sloan progressing through the farm system, while Logan Evans is expected to return next season after recovering from Tommy John surgery.
Trading a starting pitcher is never without risk, particularly given how frequently injuries impact rotations across Major League Baseball. However, Seattle may be one of the few organizations equipped to withstand such a move because of its abundance of quality arms.
Some have wondered whether veteran Luis Castillo would be the more logical trade candidate. At 33 years old, Castillo is older than Seattle’s other starters and carries a much larger contract. He is earning $22.75 million this season and is owed the same amount next year, with a potential $25 million vesting option for 2028 if certain innings and health requirements are met.
However, Castillo’s trade value has declined after a difficult campaign. His 4.85 ERA is the highest of his career, while his strikeout rate has dropped considerably compared to previous seasons. Given his age, salary, and recent performance, interested teams would likely hesitate to offer premium talent and could even ask Seattle to absorb part of his contract.
Hancock, on the other hand, presents a much more attractive option. The young right-hander entered the 2026 season with only 162⅔ career innings and a 4.81 ERA, leaving questions about his long-term ceiling. This year, however, he has taken a significant step forward, posting a 3.16 ERA with an improved strikeout rate through more than 105 innings.
While advanced metrics suggest some regression could occur, Hancock has still demonstrated enough growth to attract strong interest around the league. His combination of youth, affordability, and team control makes him one of the more valuable pitchers potentially available before the deadline. He remains under club control for four additional seasons and is not eligible for arbitration until after the 2027 campaign, making him appealing to both playoff contenders and rebuilding organizations.
Seattle’s primary motivation for considering such a move is its need for more production at the plate, especially against left-handed pitching. The Mariners have struggled badly in those matchups, ranking among the least productive offenses in baseball against southpaws. Improving that weakness has become a priority if the club hopes to make a serious postseason push.
Rather than sacrificing top position-player prospects, Seattle could use Hancock as a valuable trade chip to acquire an impact right-handed hitter while maintaining one of the league’s deepest rotations. Several attractive bats are expected to be available before the deadline, including Ryan Jeffers, Zach Neto, Taylor Ward, Ty France, Lane Thomas, Spencer Steer, Heliot Ramos, Matt Vierling, Austin Martin, José Fermín, Oswald Peraza, Luis Robert Jr., and Matt McLain.
Given Hancock’s rising value and long-term team control, the young starter could either headline a deal for one of those players or serve as the centerpiece of negotiations that help Seattle strengthen its offense for both this season and the future.
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