The Seattle Mariners nearly traded for Jhoan Duran before the 2025 trade deadline, getting close enough to Minnesota that a deal was said to be near the finish line at one point. Instead, Duran ended up with the Philadelphia Phillies, leaving Seattle to watch one of the game’s hardest throwers finish someone else’s deadline haul.

Duran is 28 years old and has already built a reputation around a fastball that has touched 105 mph. He owns a 2.41 ERA over 257 appearances in his career, and he has been even sharper since joining Philadelphia, where he has posted a 2.01 ERA in 34 appearances by 2026. For a club that has spent years looking for reliable late-inning help, that is the kind of profile Seattle had reason to chase.

The timing makes the miss sting more. The Mariners lost 4-3 in extra innings on Wednesday after leading 2-0 before a sixth-inning collapse, a reminder that even a bullpen with the third-best ERA in the league can get stretched thin when the pieces around it are missing. Seattle has been without Matt Brash and Gabe Speier, and Carlos Vargas was already out before Brash and Speier went on the injured list.

Bryce Miller went back out after coming close to his pitch limit through five innings, but the sixth changed everything. Christian Walker hit a leadoff home run, and later Cooper Criswell entered with two on and one out as the game slipped away. That sequence did not just cost the Mariners one night; it underscored why a power arm like Duran would have mattered in a bullpen already asked to cover for injuries.

For Seattle, the story is no longer about what might have happened before the deadline. It is about how close the club came to adding a reliever who can miss bats, blow past hitters, and shorten games, then walked away with the need still unresolved. Duran is in Philadelphia now, and the Mariners are left to live with the gap they almost filled.