BOSTON (AP) -- Luis Valbuena broke a ninth-inning tie with a sacrifice fly that sent the Chicago Cubs to a 2-1 win over the Boston Red Sox on Tuesday night.
Anthony Rizzo started the inning with a single off Koji Uehara (3-2) and went to third on a double by Starlin Castro. Valbuena then lined a shot to medium right field. Mookie Betts made the catch, but his throw was off line and Rizzo scored easily.
The double was the 37th extra-base hit for Castro, who entered the game tied with Troy Tulowitzki of the Colorado Rockies for the major league lead among shortstops with 36.
Pedro Strop (1-3) pitched a perfect eighth and Hector Rondon worked the ninth for his 11th save in 13 chances.