Jason Frasor has tallied a 3.65 ERA through 17 appearances in his first season for the Rangers.
Signed to a one-year, $1.5 million contract in early January, Frasor has improved upon 2012's disappointing campaign for the Blue Jays, where he posted a rough 4.12 ERA and 1.47 WHIP across 43-plus innings of relief. Frasor owns a 13/5 K/BB ratio and 1.29 WHIP through 12 1/3 frames.
Ranges released RHP Derek Lowe.
Lowe cleared waivers and was granted his unconditional release. The 39-year-old right-hander posted a 9.00 ERA in 13 innings with the Rangers and will look to continue his career elsewhere rather than accept an assignment to Triple-A Round Rock.
Ross Wolf allowed one run in five innings Wednesday against the A's to pick up his first big-league win.
Wolf entered the day 0-1 in 25 career appearances, all in relief. The journeyman was drafted by the Marlins way back in 2002, and his previous major league appearances had come with the Marlins in 2007 and the A's in 2010. He's probably going to head back to Triple-A now, but he put himself in position for another callup later with the nice showing.
Rangers signed INF Mark Teahen to a minor league contract.
Teahen was granted his release from the Diamondbacks on Monday and became a free agent. The veteran infielder hit .211/.318/.254 in 22 games at Triple-A Reno and will continue to serve as organizational depth.
David Murphy hit a two-run homer in the first inning, and the Rangers made it hold up Wednesday in a 3-1 over the A's.
Murphy had an awful April after being handed a full-time gig for the first time in his career, but now back sitting against some lefties, he's hit .291 with four homers and 11 RBI in 55 at-bats this month.