Ken Griffey Jr., whose return to the Seattle Mariners included battles with a painful left knee last season, has undergone surgery to remove a bone spur.
Junior had the surgery performed by Dr. Timothy Kremchek in Cincinnati, and is expected to be ale to begin cardio work within four-six weeks. At age 39, Griffey batted .214 with 19 home runs and 57 RBI last season, playing almost exclusively as the Mariners left-handed hitting designated hitter. Late in the year, Griffey missed more than a week with knee problems.
Though no negotiations have begun between Griffey and the Mariners, it's largely expected that Junior will return for the 2010 season, even if his playing time may be diminished.