The Seattle Mariners turned toward the future on Sunday, selecting the contract of infielder/outfielder Michael Arroyo from Triple-A Tacoma and inserting the 21-year-old into the starting lineup for his major-league debut against the Athletics, via the MLB transaction log.
Arroyo, a right-handed hitter from Cartagena, Colombia, is slated to play second base and bat eighth as Seattle gives Cole Young a day off against left-hander Gage Jump.
To open a roster spot, the club optioned infielder Patrick Wisdom to Tacoma and transferred right-hander Nick Davila to the 60-day injured list with an SC joint sprain.
The promotion is the latest in a late-season wave of young talent. Left-hander Kade Anderson arrived Aug. 20, and outfielder Lazaro Montes — Arroyo’s close friend and fellow 2022 international signing — was called up last week. Arroyo said Montes was the one who first told him the news by phone.
Ranked among Seattle’s top hitting prospects and a consensus top-50 name industry-wide, Arroyo signed for $1.375 million in January 2022, the largest bonus given to a Colombian that year.
He has hit at every stop. This season, he slashed .286/.362/.476 with 18 home runs, 81 RBI and 17 stolen bases in 113 games between Double-A Arkansas and Triple-A Tacoma, posting an .838 OPS. In his last 10 games with the Rainiers he hit .342 with a 1.069 OPS. At Triple-A he posted a 109 wRC+ with a low 16.2% strikeout rate.
A natural middle infielder listed at 5-foot-10 and 160 pounds, Arroyo has split time between second base and left field as Seattle looks for a long-term fit.
Scouts praise the compact swing and contact skills more than the glove; defense remains a work in progress. He also represented Colombia in the World Baseball Classic, batting .308 in four games.
With playoff hopes fading, manager Dan Wilson and the front office are using the final weeks to evaluate the next wave.
Arroyo’s bat has always been the carrying tool. Now he gets a first look at big-league pitching — and a reunion with Montes — as the Mariners close the 2026 season.
The Mariners entered Sunday’s action with a record of 66-77 with fading playoff hopes.
It has been an incredibly disappointing campaign for Seattle, which made the ALCS last October.
