Veteran Jay Jackson was designated for assignment by the Minnesota Twins on Sunday as the club recalled fellow right-hander Caleb Boushley from Triple-A St. Paul.
Jackson has struggled, with a 6.85 ERA in 17 relief appearances this season, his first with the Twins. He allowed 10 earned runs over six appearances in May, including three earned runs over one inning during Saturday's 11-4 loss to the Cleveland Guardians.
The 36-year-old Jackson has six seasons of major league experience with six teams, going 7-4 with a 4.19 ERA in 101 appearances (one start). He also pitched four seasons in Japan.
Boushley, 30, has one game of major league experience, allowing a solo homer for his lone hit in 2⅓ innings for the Milwaukee Brewers last season. He was 4-1 at Triple-A with a 4.54 ERA in eight starts.
Field Level Media contributed to this report.