Mariners Game #15 Preview and Discussion: HOU at SEA The Seattle Mariners and Houston Astros are set to face off in the 15th game of the 2026 season, with the matchup taking place at T-Mobile Park on April 12. The game, which marks the second contest of a four-game series, will feature a key pitching matchup between Houston’s Lance McCullers and Seattle’s Luis Castillo. McCullers, who has a history of injury concerns, is expected to start for the Astros, though his readiness remains uncertain. The Mariners, meanwhile, will rely on Castillo, who has shown promise in his first two starts but faces challenges due to a high BABIP (batting average against) and a shift in his pitch mix. Houston’s pitching rotation is in flux, with several changes impacting their strategy. Tatsuya Imai, the Astros’ starting pitcher, is undergoing a medical evaluation for a “tired arm,” while JP France was sent back to the minor leagues. Jayden Murray has been recalled to fill the void, adding to the uncertainty surrounding the Astros’ starting staff. The team also made adjustments to their lineup, with regular catcher Yainer Diaz returning to the dugout and Jose Altuve rejoining the field. This shift allows Yordan Àlvarez to take a day off as a designated hitter, while Isaac Peredes is moved off second base. Taylor Trammell is expected to fill an outfield spot, creating a reshuffled lineup aimed at giving their two Christian players a break. For the Mariners, the lineup remains largely unchanged, with Brendan Donovan sidelined due to a lingering illness. J.P. Crawford continues to lead off, a decision the writer describes as “aesthetically pleasing.” The team’s focus will be on Castillo’s performance, as he has been dominant in his first two starts but has struggled with a high BABIP.#seattle_mariners #houston_astros #t_mobile_park #lance_mccullers #luis_castillo
