2008
On February 10, 2008, Sweeney signed a minor league contract, with an invitation to spring training, with the Oakland Athletics.
After a strong spring in which he hit .308 with a home run, Sweeney's contract was purchased on March 25, 2008. Sweeney underwent arthroscopic surgery on his troublesome left knee on June 11, and was expected to miss four to six weeks. After a brief return from the disabled list, Sweeney was released by the A's on September 9.
After considering retirement, Sweeney said he would like to play one more year before retiring.
Read more about this topic: Mike Sweeney, Major League Career, Career Since: Athletics, Mariners, and Phillies