Cubs Take Down D-Backs in 12
The RBI was the fifth of the night for Schierholtz, who also hit a three-run home run. The Cubs lost a six-run lead but rallied with two out in the 12th on a walk to Anthony Rizzo followed by Schierholtz's double.
Hector Rondon pitched the 11th and 12th innings for the win. The Diamondbacks left 16 runners on base and fell 1 1/2 games out of first place in the NL West behind the Los Angeles Dodgers.
David Hernandez took the loss after Arizona's relievers had pitched 6 2-3 scoreless innings.
Diamondbacks slugger Paul Goldschmidt hit his 22nd home run, a three-run shot in the sixth inning.
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