The Seattle Mariners are debuting their Negro League-inspired throwbacks for Sunday's game against the Cleveland Guardians.

Who is ready for some baseball? The Seattle Mariners open the 2026 MLB season on Thursday, March 26 at home against the Cleveland Guardians at T-Mobile Park.

Mariners baseball is back in Seattle as opening day kicks off with a 7:10 p.m. first pitch against the Cleveland Guardians at T-Mobile Park.

With ROOT Sports no longer operating, the Seattle Mariners new home is Mariners.TV, with the MLB taking over local broadcast responsibilities. Tonight, you can watch the Seattle Mariners Opening Day game against the Cleveland Guardians live at 7:10 p.

Seattle opens the season tied for No.2 in MLB power rankings after a breakout year, with strong playoff odds and World Series expectations.

Fresh off his three-run home run and the Mariners' win on Sunday Night Baseball, Brendan Donovan explains what's made his adjustment to Seattle so seamless and why the team is set to "continue to grow.

We’ve made it not only to Spring, but to the opening weekend of Major League Baseball! The Mariners are in town through the weekend, but that’s not the only thing going on in town.

SEATTLE — Thursday night’s season opener belonged to Chase DeLauter. Every time the Guardians rookie swung the bat, he seemed to make history. He homered in his first official major-league at-bat, just the fifth Cleveland player to do so.

Sunday Night Baseball has a new home for 2026, and here is everything you need to know about how and where to watch. The Sunday showcase had aired on ESPN since 1990, but Sunday Night Baseball is now on NBC.

Opening Day marks a milestone season for the Seattle Mariners: 50 years of Major League Baseball in the Emerald City.