Jeremy Bonderman's comeback to the major league may have come to a close, as the Seattle Mariners designated the veteran pitcher for assignment on Monday.
Bonderman made his first appearance in the big leagues since 2010 when he started for Seattle at Minnesota on June 2, but went just 1-3 with a 4.93 earned run average over seven assignments after having his contract purchased from Triple-A.
The right-hander has particularly been struggling of late, having surrendered 12 runs (10 earned) on 13 hits and seven walks in just 8 1/3 innings over his two most recent outings.
Bonderman, who posted back-to-back 14-win seasons with Detroit in 2005 and 2006, had been out of professional baseball for two consecutive years due to arm problems before signing a minor league deal with Seattle in December.
The 30-year-old had been slated to start Thursday against Boston, with the Mariners yet to announce a replacement.
Seattle recalled lefty reliever Lucas Luetge from Triple-A Tacoma to take Bonderman's place on the active roster.
Luetge posted a 3.98 ERA and two saves as a rookie with the Mariners last season, but had permitted nine runs and 17 hits over 11 1/3 innings before being optioned to the minors in late May.