"It's tremendous just to watch him out there working so hard," A's manager Bob Melvin said. "He's coming along."
Sizemore can swing the bat and takes ground balls.
Jordan Norberto (left shoulder tendinitis) is eligible to come off the disabled list but has not been able to start a throwing program.
Eric Sogard (strained back) is playing catch but is not allowed to run yet. Dallas Braden (left shoulder surgery) had another surgery performed on his shoulder in the last four days and will be on the shelf for the foreseeable future.