The 2026 MLB season gets underway in Seattle as the Seattle Mariners host the Cleveland Guardians in an Opening Day matchup featuring two rising American League contenders.

MORE: MLB preseason power rankings

Oct 17, 2025; Seattle, Washington, USA; Seattle Mariners catcher Cal Raleigh (29) hits a solo home run against the Toronto Blue Jays in the eighth inning during game five of the ALCS round for the 2025 MLB playoffs at T-Mobile Park. Mandatory Credit: Stephen Brashear-Imagn Images

How To Watch Mariners vs Guardians

Date: Thursday, February 26, 2026

Time: 10:10 p.m. ET

TV Channel: MLB Seattle Mariners, MLB Cleveland Guardians, MLB.TV

Live Stream: Fubo (try for free)

The Mariners enter 2026 carrying sky-high expectations after coming within reach of a World Series appearance last season, and they’ll look to capitalize immediately behind ace Logan Gilbert and a deep, talented roster led by Julio Rodríguez.

With one of the league’s most complete pitching staffs and a bullpen built to lock down tight games, Seattle is widely viewed as a serious contender in the AL, and oddsmakers favor them to start the year strong at T-Mobile Park.

Live Stream Mariners vs Guardians

For the Guardians, this opener represents a chance to prove their 2025 division-winning season was no fluke, even as questions linger about offensive consistency. Anchored by star José Ramírez and a fundamentally sound lineup, Cleveland will rely on Tanner Bibee and a young core to keep things competitive in what projects as a low-scoring, pitching-driven battle.

With both teams built around strong rotations and disciplined play, this matchup feels less like a typical Opening Day shootout and more like a postseason-style test right out of the gate.

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