Oakland, CA -- (Sports Network) - The Oakland Athletics outrighted pitchers Edgar Gonzalez, Kevin Cameron, Dan Giese and catcher Eric Munson to Triple-A Sacramento on Friday.

The 25-year-old Gonzalez went 0-4 with a 5.51 earned run average in 26 games -- six starts -- with the major league club after being recalled from Sacramento on May 19.

Cameron was with the Athletics from April 29 to June 2 and had one save to go along with a 3.44 ERA in 11 relief appearances.

Giese posted an 0-3 record with a 5.32 ERA in seven games -- one start -- with Oakland before having his season cut short in early June due to Tommy John surgery.

Munson was called up from Sacramento on September 11 and was 0-for-1 in one contest after spending the regular season with the Triple-A club. He hit 13 homers and added 68 runs batted in, while posting a .265 average in 99 games.

In nine big league seasons spanning 361 games, Munson has a career .214 average with 49 home runs and 147 RBI with Detroit, Houston and the A's.