MLB: Arizona 10, Pittsburgh 4

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PITTSBURGH, Aug. 7 (UPI) -- Chris Johnson pounded homers in the eighth and ninth innings Tuesday to break open a close game and rally the Arizona Diamondbacks past Pittsburgh 10-4.

The D-backs trailed 4-3 heading into the eighth but forged a tie when Paul Goldschmidt, Justin Upton and Miguel Montero got consecutive hits off Jason Grilli (1-4).

Johnson followed by belting the first of his two shots, a fly ball that just cleared the fence in right-center field for three runs.

Arizona piled it on in the ninth as Montero stroked an RBI double and Johnson connected for a two-run blast, finishing with five RBI.

The late outburst made a winner of Brad Ziegler (5-1), who go the final two outs of the seventh as the D-backs evened their four-game set with the Pirates at one win apiece.

Stephen Drew went 3-for-4 with a solo homer and two RBI in the win.

Andrew McCutchen drove in two runs and Starling Marte socked a solo homer for the Bucs.