Houston at Seattle

Seattle made an amazing comeback on Monday after the Astros had scored six runs in the first inning, and Dylan Moore hit a grand slam in the eighth to put the finishing touches on an 11-8 victory. The Mariners improved to 33-21 at home and are just a game out of a Wild Card spot after winning their last four games. Chris Flexen is 9-4 with a 3.35 ERA, and he has allowed only four runs in 25 1/3 innings in July. Flexen faced Houston once this season and gave up one run in six innings. The right-hander is 6-3 with a sparkling 1.89 ERA at home where he has pitched far better than on the road. Lance McCullers, Jr. comes off a rough outing allowing four runs in five innings in a 5-4 loss to Cleveland. Seattle has won 20 of its past 28 games as an underdog. Take the Mariners.