Yacabonis was designated for assignment by the Mariners on Monday.

Yacabonis' contract was selected Saturday, but he didn't make any appearances during his two days in the major-league bullpen. The right-hander recorded a 1.72 ERA and 1.03 WHIP in 31.1 innings across 24 appearances (one start) at Triple-A Tacoma this year and will likely remain in the organization if he goes unclaimed on waivers.