Seattle Mariners (81-76, second in the AL West) vs. Houston Astros (85-72, first in the AL West) Houston; Tuesday, 8:10 p.m. EDT PITCHING PROBABLES: Mariners: Logan Gilbert (8-11, 3.24 ERA, 0.90 WHIP, 207 strikeouts); Astros: Framber Valdez (14-7, 2.