The Mariners have released veteran right-handed reliever Tom Wilhelmsen, who was designated for assignment on Friday.
Wilhelmsen, who turns 33 next month, posted a 6.80 ERA in 50 appearances for the Rangers and Mariners this past season. He had a 3.60 ERA in 29 games with Seattle after joining the team in June.
Wilhelmsen has a 3.46 ERA in 317 career games over six seasons with the Mariners and Rangers.
Seattle's 40-man roster remains full.