The A's sent down right-hander Kevin Cameron, who had a 2.79 ERA in 48 games for the Padres in 2007. A non-roster invitee, Cameron allowed two earned runs in 3 2/3 innings this spring training. Also, Oakland optioned right-hander Ryan Webb and infielders Jeff Baisley and Eric Patterson to Triple-A Fresno on Monday and reassigned right-hander James J. Simmons and infielders Joe Dillon and Sean Doolittle.
The A's invited C Landon Powell, UTL Gregorio Petit, RF Javier Herrera, OF Matt Carson, 2B Corey Wimberly, 2B Jemile Weeks, 1B Sean Doolittle, 1B Chris C. Carter, 3B Joe Dillon, SS Adrian Cardenas, C Josh Donaldson, RP James J. Simmons, RP Tyson Ross, SP Vin Mazzaro, SP Jared Lansford, RP Brett Hunter, SP Andrew Carignan, SP Trevor Cahill, SP Brett Anderson and RP Drew Bailey.
The A's optioned RHP Jeff Gray and INF Kevin Melillo to Triple-A Sacramento, and reassigned LHP Troy Cate, RHP James Simmons and IF Casey Rogowski to their minor league camp Sunday.