ARLINGTON, Texas (AP) _ Texas Rangers pitcher Kenny Rogers had arthroscopic surgery Wednesday to remove a bone spur from his left elbow.

Rogers is expected to begin throwing in about six weeks. The left-hander, 13-13 with a 4.55 ERA in 34 starts this year, should be ready for the start of spring training.

The Rangers also said Wednesday that they have received outfielder Bo Porter on a waiver claim from the Oakland A's.

Porter spent most of this season with Triple-A Sacramento, batting .272 with 14 homers, 64 RBIs, and a league-best 39 stolen bases in 129 games. Porter was 2-for-13 with a homer and two RBIs in 17 games with the A's.

Texas took three players off its major league roster, assigning left-handed pitchers Corey Lee and Juan Moreno and catcher B.J. Waszgis to Triple-A Oklahoma.