A few weeks ago, the Mariners made a minor move to pick up some bullpen help in the form of José Castillo. Although he pitched three scoreless innings with Seattle, he was designated for assignment and recently claimed by Baltimore, concluding his brief time with the Mariners.
In Castillo's stead, the Mariners have turned to reliever Luke Jackson, who signed a minor league deal with the team at the end of August. In his brief tenure with the big league club, he's already carving his own niche.
Luke Jackson has exceeded expectations in his new bullpen role with the Mariners
Prior to joining the Mariners, Jackson had subpar results with the Rangers and Tigers, posting a 4.