The grandson of the Red Sox legend was one of several deadline additions by the Royals, who are in the hunt for a Wild Card spot.

Mike Yastrzemski homered in his first at-bat with Kansas City, Michael Wacha limited Toronto to a run in eight innings in his longest outing of the season and the Royals beat the Blue Jays 9-3 on Friday night.

Mike Yastrzemski has been traded to the Kansas City Royals, with the Giants receiving pitcher Yunior Marte in the exchange. Yastrzemski has spent all of his seven-year career with the San Francisco ball club. Yastrzemski’s contract with the Giants was set to expire at the end of the current season, and he was to become a free agent in 2026.