Ramirez agreed Sunday with the Mariners on a minor-league contract, Triple-A Tacoma broadcaster Mike Curto reports.
The 32-year-old lefty was assigned to Tacoma and made his debut for the affiliate Sunday, striking out two and walking one over a scoreless frame. Ramirez previously appeared in 13 MLB games with the Padres in 2021, logging a 5.75 ERA across 20.1 innings.