Houston Astros (4-6) vs. Seattle Mariners (4-7) Seattle; Tuesday, 9:40 p.m. EDT PITCHING PROBABLES: Astros: Framber Valdez (1-1, 3.75 ERA, 1.17 WHIP, 13 strikeouts); Mariners: Luis Castillo (1-1, 3.00 ERA, 1.