Cal Raleigh, José Ramírez highlight season debut of Sunday Night Baseball on Peacock
A new MLB season is underway, and with it comes a new place to watch Sunday Night Baseball.
NBC, Peacock and NBCSN will be your home for Sunday Night Baseball throughout 2026. The season's first SNB game will wrap MLB Opening Week this Sunday when Cal Raleigh and the defending AL West champion Mariners host José Ramírez and the defending AL Central champion Guardians at 7:20 p.m. ET on Peacock and NBCSN.
Here is what you need to know about this matchup.
Guardians at Mariners, 7:20 p.m. ET on Peacock and NBCSN
The Mariners have a squad that many believe can finally win the franchise's first pennant in 2026. Center fielder Julio Rodríguez and AL MVP runner-up Raleigh are driving Seattle's ship, but offseason acquisitions such as infielder Brendan Donovan, who homered on Opening Day against Cleveland, should help make the Mariners' lineup even more potent. Seattle's scheduled starting pitcher for this primetime matchup is right-hander Emerson Hancock, who recorded a 4.90 ERA across 22 appearances (16 starts) last season.
Hancock will be opposed by Slade Cecconi, who, like Hancock, finished up his third MLB season in 2025. Cecconi had a 4.30 ERA in 23 starts and allowed a ton of hard contact; his 49.1% hard-hit rate ranked as the fifth-highest among qualified pitchers. Cleveland is led by Ramírez, the face of the franchise. However, the Guardians might have another superstar in the making in outfielder Chase DeLauter. A first-round Draft pick in 2022, DeLauter homered three times through the first two games of this season, which were also the first two regular-season games of his career.
How can I watch this game?
This week's Sunday Night Baseball Game between the Guardians and Mariners will stream on Peacock. There will be a simulcast on NBCSN, NBC Sports’ cable network.
Do I need to pay to watch live games on Peacock?
Yes. A Peacock subscription is required to stream live games.
On what devices can I watch the games on Peacock?
Peacock is supported on a wide variety of devices and platforms. You can find a full list here.