How to Watch Mariners at Astros (Sept. 20): Stream MLB Live, TV Channel

George Kirby will take the mound against Framber Valdez as the Seattle Mariners continue a three-game series against the Houston Astros.

The Seattle Mariners will take the field at Daikin Park for the second game of this three-game series in Texas against the Houston Astros on Saturday. The Mariners took the win on the road in the first game of this series on Friday night. They now are just one game behind the Astros in the season series after Houston took a four-game series earlier this season three games to one. Seattle shutout Houston on Friday night, 4-0, on the back of a stellar performance from Bryan Woo. He pitched 5.0 scoreless innings, allowing just one hit and one walk with seven total strikeouts.

How to Watch Seattle Mariners at Houston Astros Today:

Game Date: Saturday, Sept. 20, 2025

Game Time: 7:10 p.m. ET

TV Channel: Space City Home Network

Location: Daikin Park

Live stream Seattle Mariners at Houston Astros on Fubo: Start Watching Today!

All of Seattle’s runs in the game as well came from solo hoome runs. Julio Rodriguez started the home run party in the first inning before Eugenio Suarez added to in the fourth inning. Victor Robles joined the parade in the seventh inning before Josh Naylor finished it in the eighth inning. Surprisingly, MLB home run leading Cal Raleigh did not homer in the win.

George Kirby will take the mound to open up the second game of this series for Seattle. The right-hander comes into this game with a 9-7 record and a 4.46 ERA with a 1.23 WHIP. He has given up 113 hits with 120 strikeouts over 115.0 innings. Kirby started his last game against the Los Angeles Angels and allowed two earned runs on three hits over 6.1 innings with a massive 14 strikeouts.

Houston will elect to start Framber Valdez on the mound in the middle game of this series. The left-hander is 12-10 in his 2025 campaign with a 3.59 ERA and a 1.22 WHIP. He had 173 strikeouts this season over 180.1 innings pitched. Valdez took on the Atlanta Braves in his last start, pitching 4.0 innings, giving up five earned runs with two strikeouts, allowing six hits.

What Time Is The MLB Game Between Seattle and Houston On?

The Seattle Mariners at Houston Astros game will take place on Saturday, Sept. 20, 2025, at 7:10 p.m. ET. Tune in and catch some great Major League Baseball action.

What Channel Is The Seattle Mariners at Houston Astros Game On?

Looking to watch this game? Fans can tune into Space City Home Network to see the action. Make sure you subscribe to Fubo now to watch this match and many other baseball games.

Live stream Seattle Mariners at Houston Astros on Fubo: Start Watching Today!

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