Parker was examined Monday in Gulf Breeze, Fla., by Dr. James Andrews, who repaired his elbow on Oct. 28, 2009, when Parker was with Arizona. Parker is to have surgery again on March 25.
Parker had a 10.61 ERA in three spring training starts.
He becomes the latest pitcher who needs a ligament replaced, joining Arizona's Patrick Corbin. Atlanta pitchers Kris Medlen and Brandon Beachy also were being examined by Andrews on Monday and might need season-ending elbow surgery.
Parker's surgery clears the way for Jesse Chavez and Tommy Milone to join Oakland's starting rotation.
Oakland left-hander Scott Kazmir was scratched from his scheduled start Monday against the Chicago Cubs due to left triceps stiffness. But that injury isn't thought to be serious.
More Sports Headlines
Art Thiel: For Seahawks, the Packers are the new 49ers Seahawks’ center is lifelong ‘Packer Backer’ 7:21 p.m. Utah State quarterback Keeton has Huskies’ attention 6:36 p.m. Two key calls go M's way in 3-1 win over Rangers 8:28 p.m. Packers right tackle Bulaga to miss Seahawks game 6:39 p.m. No. 9 Florida State beats Boston College 14-0 8:18 p.m. Day shoots 63 to match PGA Tour 36-hole low 6:45 p.m. Tiger Woods has second microdiscectomy surgery on back 6:42 p.m.
Our new comment system is not supported in IE 7. Please upgrade your browser here.