Seattle Mariners relief pitcher Erik Swanson (elbow) began a rehab assignment at High-A Everett this past Saturday. He is slated to make one more rehab appearance with the team before rejoining the Mariners during the team's upcoming homestand, which spans from June 10 to June 19. The right-hander has been a dependable arm out of the Mariners' pen this year. Over 13 appearances, he's pitched to a 1.29 ERA and a 0.79 WHIP while compiling three holds and converting each of his two save opportunities.

Seattle Mariners relief pitcher Erik Swanson was given the save opportunity against the Texas Rangers Sunday, and it did not go well. He gave up three runs on three hits without recording an out, leaving him with his first blown save and first loss on the season. Swanson was in this position because both Diego Castillo and Paul Sewald had pitched on back-to-back days, and he isn't expected to receive more save opportunities. Swanson has been quite effective this year with a 1.86 ERA and 0.93 WHIP in 19 1/3 innings, but he doesn't belong on fantasy rosters.