PEORIA, Ariz. -- The on-again, off-again saga of Edgar Olmos with the Mariners continued Thursday as the left-handed pitcher was returned to Seattle's 40-man roster after Major League Baseball voided a Rangers waiver claim on him following a dispute over the health of his shoulder.
The Rangers claimed Olmos off waivers on Feb. 24, but then asked to have that reversed based on their belief that he has an impingement in his throwing shoulder.
Seattle had designated Olmos for assignment earlier in the month to open a spot on the 40-man roster for Rickie Weeks, but now the 24-year-old returns to its own Major League roster.
To make room on the 40-man squad, Seattle designated first baseman Ji-Man Choi for assignment. Choi broke his right leg while leaping for a high throw in Wednesday's Cactus League opener and underwent surgery Thursday in Phoenix to repair a fractured fibula in the leg and a torn deltoid ligament.
Seattle now has 10 days to trade, release or outright Choi's contract to the Minors. Should Choi clear waivers, he could be outrighted to Triple-A Tacoma and spend the season rehabbing his injured leg.
Olmos originally was claimed by Seattle off waivers from the Marlins on Nov. 20, but had yet to arrive at Mariners camp when he was placed on waivers again and claimed by Texas. The 6-foot-4 southpaw from California was 3-3 with three saves and a 4.06 ERA in 51 relief appearances with Double-A Jacksonville and Triple-A New Orleans last season.
Olmos pitched five games in relief for the Marlins in 2013, allowing seven hits and nine runs (four earned) in five innings.
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.