• Right-hander Fernando Rodriguez, who underwent Tommy John surgery last spring, has been given the clear to take part in all drills, but is not expected to begin throwing bullpen sessions just yet.
Rodriguez has been playing catch and throwing long toss -- "The ball's flying out of his hand," Melvin said -- and could be thrown into a few simulated games at some point during camp.
"Whether or not he gets into a big league game or not," Melvin said, "I'm not sure at this point."
Rodriguez has yet to pitch in a big league game for the A's since arriving with Jed Lowrie from Houston last February.
Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.