Mariners and Tigers Prepare for Pivotal ALDS Opener

As the 2025 MLB postseason continues, the Seattle Mariners and Detroit Tigers are preparing to square off in the American League Division Series. The series is set to begin on Saturday, with the Mariners sending George Kirby to the mound for Game 1 and the Tigers countering with rookie Troy Melton.

In Game 2, the Mariners will turn to veteran Luis Castillo, who will face off against Tigers ace Tarik Skubal. The Tigers were limited in their options heading into the series, with Skubal, Casey Mize, and Jack Flaherty all starting in the wild-card round earlier this week. The Mariners, on the other hand, had the luxury of resting their starters and will now deploy Kirby and Castillo, who have both been dominant at home this season.

The Mariners' pitching plans could be impacted by the availability of All-Star starter Bryan Woo, who is nursing a pectoral injury. Woo threw a bullpen session and a simulated game on Thursday, and the team is still evaluating his status for the ALDS roster. If Woo is deemed healthy enough to play, the Mariners may opt to carry five starting pitchers for the best-of-five series.

The Tigers, meanwhile, are also monitoring the status of outfielder Matt Vierling and infielder Colt Keith, both of whom have been dealing with injuries. Both players took live batting practice on Friday, and the team will continue to evaluate their readiness for the series.