BOSTON — Travis Shaw hit a game-ending grand slam in the 11th inning, and the Boston Red Sox beat the Texas Rangers 8-4 on Monday.

Shaw, who entered as a defensive replacement in the eighth, drove a 3-2 pitch off Dennis Santana (2-3) over Boston’s bullpen. He flipped his bat and looked at the dugout before rounding the bases and getting mobbed at the plate.

It was Shaw’s first hit since he was claimed off waivers from Milwaukee on Aug. 15. He also began his big league career with the Red Sox in 2015.

Alex Verdugo and Hunter Renfroe also homered for Boston in the makeup of Sunday’s scheduled game, which was postponed due to the approach of Hurricane Henri. Garrett Whitlock (5-2) worked 2 2/3 innings for the victory.

The Red Sox committed a season-high five errors and had two baserunners cut down in a 10-1 loss on Saturday night. Manager Alex Cora called the the game “embarrassing” and “not acceptable.”

The Rangers have the majors’ fewest wins since the All-Star break at 8-26. Andy Ibáñez hit a tying two-run double in the ninth against Matt Barnes.