MLB: Pittsburgh 5, St. Louis 3

Oct. 6, 2013 at 8:36 PM

PITTSBURGH, Oct. 6 (UPI) -- Pedro Alvarez singled home the go-ahead run in the eighth inning Sunday and Pittsburgh grabbed a 2-1 NLDS series lead with a 5-3 victory over St. Louis.

The Cardinals had tied it up at 3-3 on a solo homer in the top of the eighth off Mark Melancon (1-0), but the Pirates quickly responded in the next half-inning.

With one out and pinch-runner Josh Harrison at first base, Marlon Byrd drew a walk from Carlos Martinez (0-1) and Alvarez followed by sending a ground single through the right side of the infield for a 4-3 lead.

Russell Martin then came up and scorched a line drive to left for another RBI.

Jason Grilli allowed a hit in the ninth but finished up with his first post-season save, putting the Pirates one win away from a berth in the National League Championship series.

Beltran finished 2-for-3 with three RBI for the NL Central champion Cardinals, who now must win two in a row against their division rivals to avoid elimination.

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