Watch Mariners’ Lazaro Montes learn of promotion to MLB

There’s one moment every MLB player remembers, and it’s when they learn they’re headed to the big leagues for the first time. Seattle Mariners prospect Lazaro Montes had that moment on Sunday, and a camera was rolling.

Seattle Mariners sign LHP, add Montes as September call-ups

The Mariners shared video of Tacoma Rainiers manager John Russell informing Montes in front of the Triple-A club that he would be joining the M’s on Tuesday as a September call-up (click here to watch if the video doesn’t appear below).

A moment Laz will never forget 💙 pic.twitter.com/Xhgaf1ZDQu

— Seattle Mariners (@Mariners) September 1, 2026

After he shared hugs with teammates, including the longest one with longtime teammate and fellow top prospect Michael Arroyo, infielder Leo Rivas urged the Cuban-born Montes to give a speech to the team in English.

“This is amazing for me,” the 21-year-old Montes says in the clip. “Thank you for everyone. I learned from everybody here. And, I mean, I can’t even speak, man. But I love everybody, I love you.”

News of Montes’ promotion to the Mariners was first reported Sunday. The move was made official on Tuesday morning, the same day MLB active rosters were increased from 26 to 28 players for the final month of the season.

Montes is in the lineup for his MLB debut in Tuesday’s 3:45 p.m. game at Fenway Park against the Boston Red Sox, hitting seventh in the batting order and serving as the designated hitter. Mariners Radio Network coverage on Seattle Sports of the game starts at 2:30 with the pregame show.

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