 He returned on May 11 from a knee injury suffered April 12, and hit a walk-off three-run home run in the bottom of the 11th inning against the Washington Nationals.On June 5, Griffey tied Fred McGriff's record by hitting a home run in his 43rd different ballpark, at the St. Louis Cardinals' Busch Stadium.On June 19, Griffey hit career home run 548, tying him with Mike Schmidt, and then six days later passed Schmidt with 549.