The A's not surprisingly placed Brett Anderson on the 15-day disabled list Tuesday. After undergoing an MRI, the left-hander will now get a second opinion from elbow specialist Dr. James Andrews early next week, manager Bob Geren said after Tuesday's loss to the Orioles. Simply getting checked by Andrews does not imply structural damage or a long-term injury, as the team has sent pitchers to Andrews before and the diagnosis has come back minor.