"It is truly a win-every-game mentality for us," Astros manager A.J. Hinch said. "The road ahead is going to be played out over six games. We can't control the five that are in front of us. We control the one that we're playing [Monday], so our chances? I don't know what's going to happen with Detroit, Baltimore, Toronto or Seattle.
"I know Seattle is the one team we can control what they do for the next three days. We'll play it out and see where it goes, but we need as many wins as we can get."
The Astros, who are 10-6 against the Mariners this year, will send right-hander Collin McHugh to the mound in Monday's 7:10 p.