How to Watch Cubs vs. Mariners: TV Channel, Live Stream, Time

The Chicago Cubs visit the Seattle Mariners on Saturday, August 22, 2026 at 4:15 p.m. PT from T-Mobile Park, Seattle, WA.

The Seattle Mariners enter at 61-68 (.473), while the Chicago Cubs sit at 74-55 (.574). Top prospect Kade Anderson is scheduled to make his major league debut for Seattle after going 10-1 with a 1.06 ERA, a 0.64 WHIP and 135 strikeouts over 93 1/3 innings at Double-A Arkansas. David Peterson (7-7, 5.29 ERA over 112 1/3 innings) is the probable starter for Chicago. The Cubs’ 622 RBI rank second in MLB this season, while the Mariners’ 3.34 strikeout-to-walk ratio leads the majors.

Below, we'll give you all the details you need to know about how to watch this game.

How to Watch Cubs vs. Mariners

• When: Saturday, August 22, 2026 at 4:15 p.m. PT
• Where: T-Mobile Park, Seattle, WA
• TV: FOX
• Stream: Watch 3 days free on FOX One, FOX Sports

Players To Watch

Pete Crow-Armstrong

Center FielderChicago Cubs

Pete Crow-Armstrong can impact the game with both his power and speed. The Cubs center fielder enters the matchup with 32 home runs, 80 RBI, a .279 batting average, a .378 on-base percentage, a .550 slugging percentage and 31 stolen bases.

Crow-Armstrong could present an immediate challenge for Kade Anderson in his scheduled major league debut. If he reaches base early or capitalizes on a mistake over the plate, he can quickly put Chicago in control.

Seiya Suzuki

Right FielderChicago Cubs

Seiya Suzuki gives Chicago another dangerous run producer in the middle of the lineup. He has recorded 22 home runs and 74 RBI while batting .267 with a .359 on-base percentage and a .480 slugging percentage.

Suzuki is a key part of a Cubs offense that leads MLB in on-base percentage, ranks third in slugging percentage and OPS and sits second in RBI. His ability to work deep counts and punish mistakes could make Anderson’s first major league start a difficult one from the opening inning.

Kade Anderson

PitcherSeattle Mariners

All eyes will be on Kade Anderson as the highly regarded left-hander prepares for his scheduled major league debut. Anderson dominated Double-A hitters with a 1.06 ERA, a 0.64 WHIP and 135 strikeouts against only 13 walks over 93 1/3 innings.

His first test will come against one of baseball’s most productive offenses. Chicago is 5-5 over its past 10 games and ranks among MLB’s best teams in on-base percentage, OPS and RBI. If Anderson can miss bats and limit hard contact from Crow-Armstrong, Suzuki and the rest of the Cubs lineup, Seattle’s pitching could set the tone.

Randy Arozarena

Left FielderSeattle Mariners

Randy Arozarena remains one of Seattle’s most dependable offensive threats. He enters the matchup batting .271 with a .365 on-base percentage, a .447 slugging percentage, 17 home runs, 54 RBI and 20 stolen bases.

His ability to reach base and create pressure will be especially important against David Peterson, who has a 5.29 ERA, a 1.53 WHIP and a .277 opponent batting average over 112 1/3 innings. If Arozarena can spark the offense early, he can give the Mariners a chance to manufacture runs and take some pressure off Anderson.

Cubs vs. Mariners Odds

Learn more about the Chicago Cubs vs. Seattle Mariners game and check the full MLB schedule on FOX Sports!

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