Astros second baseman Jose Altuve capitalized Sunday on a defensive mistake by Red Sox shortstop Xander Bogaerts, which led to his first career grand slam in an 8-1 win at Boston.
The Astros got a break when manager Bo Porter won a challenge after Bogaerts picked up Marwin Gonzalez's grounder, ran to second for what looked like a force and fired to first. The problem was he threw the ball about a step before he tagged the bag.
The inning continued after the challenge. Joe Kelly then walked Robbie Grossman before Altuve parked a grand slam to put Boston up 6-0 in the second inning.
''That there's a big play,'' said Porter, who said he was first told by the umpires that the play wasn't reviewable. ''You look at that stage of the game and what proceeded to happen after that, Altuve with the big grand slam, one could say that was the biggest play of the game.''
Altuve finished Sunday's game with four hits. He is batting .338 with two home runs, three doubles, eight RBI and 11 runs in 15 August games.