Red Sox earn ninth walk-off win
August 17, 2017 | 00:01:01
Mookie Betts' double keeps Boston 4 1/2 games ahead of the Yankees in the AL East as the Red Sox walk off for the ninth time in 2017
Mookie Betts' double keeps Boston 4 1/2 games ahead of the Yankees in the AL East as the Red Sox walk off for the ninth time in 2017