Joe Wieland (elbow) is aiming to begin a throwing program within the next few days.
Brett Lawrie has been suspended four games for spiking his helmet at home plate umpire Bill Miller.
Michael Morse (lat) made 60 throws Wednesday.
A second MRI taken Wednesday on Cory Luebke's left elbow confirmed a partial ligament tear.
Wilson Ramos said Wednesday that he expects to undergo surgery to repair his torn right ACL in 2-3 weeks.
Athletics optioned RHP Andrew Carignan to Triple-A Sacramento.
Ivan Nova (foot, ankle) is scheduled to throw a side session Thursday morning in Toronto.
Yunel Escobar is not in Wednesday's starting lineup.