Pittsburgh, PA (Sports Network) - Matt Dominguez and J.D. Martinez drove in the two deciding runs in the top of the 11th inning as the Houston Astros defeated the Pittsburgh Pirates, 4-2, Saturday in the middle test of a three- game set at PNC Park.

Pittsburgh's Bryan Morris (1-2) adsorbed the loss after allowing both runs in the 11th.

Jose Altuve and Chris Carter each drove in one run for the Astros, who have won two of three. Jose Cisnero (1-0) earned the win after tossing 3 2/3 shutout innings of relief, while Jose Veras picked up his sixth save of the season with a perfect 11th.

Mark Melancon blew a 2-1 Pittsburgh lead in the eighth, allowing Carter to tie the game with an RBI single.