Earlier on Monday, the Red Sox made a roster move to designate Ryan Weber for assignment and add Michael Chavis to the active roster. As a result, the Red Sox were left with an open 40-man spot, but it wasn’t going to be left open very long at all. The team made a deal with the Mariners to fill the spot, exchanging cash considerations for right-handed pitcher Yacksel Ríos.
Ríos was drafted by the Phillies back in 2011 as a 12th round pick, making it up to the majors for the first time in 2017 as a reliever. The now-27-year-old has bounced around the league to a few different spots the last few seasons, and has spent parts of the last five seasons in the bigs. In total, he’s tossed 72 1⁄3 innings in the majors, pitching to a 6.47 ERA with 70 strikeouts and 36 walks. In 13 2⁄3 innings at Triple-A this season with the Rays organization, he pitched to a 0.66 ERA with 17 strikeouts and two walks.
Most recently, he was designated for assignment by Seattle. Ríos will throw two different mid-90s fastballs along with a slider. He still has one minor-league option remaining, and will presumably be spending time in the Worcester bullpen.