Mike Yastrzemski rounded the bases to the cheers of the Fenway Park fans after hitting a solo homer for San Francisco -- like his grandfather heard numerous times during his illustrious career with the Red Sox. The 29-year-old grandson of Hall of Famer Carl Yastrzemski hit his homer in his first game in Fenway, and Alex Dickerson had a pinch-hit sacrifice fly in the 15th inning to lift the Giants to a 7-6 victory over Boston on Tuesday night.