Rangers acquired RHP Tom Wilhelmsen, OF James Jones and a PTBN from the Mariners for OF Leonys Martin and RHP Anthony Bass.
Tom Wilhelmsen is unavailable for Thursday's game against the Royals.
Tom Wilhelmsen took his first blown save after giving up a run in the ninth Wednesday against the Royals.
Tom Wilhelmsen notched his 10th save of the season in Sunday's 3-2 win over the A's, tossing a scoreless ninth.
Tom Wilhelmsen got a five-out save Wednesday against the Astros.
Tom Wilhelmsen threw a perfect ninth inning against the Astros on Tuesday to earn his seventh save.
Tom Wilhelmsen locked down his fifth save of the season with a perfect ninth inning in Friday's 2-0 win over the White Sox.
Mariners manager Lloyd McClendon said Wednesday that Tom Wilhelmsen is the team's closer "as we speak."
Tom Wilhelmsen picked up his fourth save with a scoreless ninth inning facing the Athletics in Tuesday's 6-5 victory.
Mariners manager Lloyd McClendon said that Tom Wilhelmsen would like see the save chance if one came up on Monday.
Tom Wilhelmsen earned his third save of the 2015 season in the Mariners' win over the White Sox on Sunday.
Mariners recalled RHP Tom Wilhelmsen from Triple-A Tacoma.
Mariners optioned RHP Tom Wilhelmsen to Triple-A Tacoma.
Mariners activated RHP Tom Wilhelmsen from the 15-day disabled list.