Diamondbacks sent LHP Santos Rodriguez outright to Triple-A Reno.
The move clears room on the 40-man roster for the addition of Oliver Perez. Rodriguez put up a 4.91 ERA and 1.57 WHIP in 47 2/3 innings last season between Double- and Triple-A with the White Sox before the D'Backs claimed him off waivers in January.
Dodgers optioned RHP Matt Magill to Triple-A Albuquerque; reassigned C JC Boscan, RHP Carlos Frias, INF Brendan Harris and 1B Clint Robinson to minor league camp.
No surprises here. Magill made six starts for the Dodgers last year, posting a 6.51 ERA, but he struck out a batter per inning and boasts big strikeout numbers in the minors. He could get a shot at some point this season if the big club needs a rotation reinforcement.
Taijuan Walker (shoulder) is currently long-tossing from 120-150 feet.
The Mariners are understandably taking things slowly with their prized young right-hander after he suffered a setback with his shoulder late last month. "He threw the ball extremely well -- no pain whatsoever -- and he's got a smile on his face, so that's a good thing," manager Lloyd McClendon said. "I feel real good about where he is." There's no timetable for when Walker will return to Cactus League action.