Alvarez, who beat the Mariners with a monumental three-run walk-off homer in

Game 1 of the American League Division Series,

hit a two-run homer off the field in the sixth inning against

Luis Castillo to give the Astros the lead on Thursday.

Beat Seattle 4-2 in Game 2 at Minute Maid Park this afternoon.

This prompted Mariners manager Scott Serves to lead him in first base runners late in the game,

but Alvarez's damage was done.

Behind Alvarez, who became the first player in postseason history to

hit multiple homers after the sixth inning when the team was behind,

the Astros went 2-0 in the best-of-5 ALDS. Leading.