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8/30/2014 7:04 P.M. ET

Overturned call gives Cubs run vs. Cards

ST. LOUIS -- Umpires reviewed a potential violation of Rule 7.13, which resulted in the Cubs getting a run in the first game of a twin bill against the Cardinals at Busch Stadium on Saturday. Chicago won the game, 5-1.

With two outs and the bases loaded in the Chicago second, Chris Coghlan singled to right off St. Louis' Justin Masterson. Logan Watkins scored. Then Chris Valaika slid home, and he was originally called out by home-plate umpire Alan Porter.

Manager Rick Renteria left the dugout to speak with umpires, who initiated a crew-chief review to determine whether Cardinals catcher A.J. Pierzynski was improperly positioned and had violated Rule 7.13. Pierzynski had given the runner a lane to the base, but the New York review crew did see that Valaika had avoided the tag, and he was ruled safe to give the Cubs a 2-0 lead.

"When you ask for a 7.13 [review], as [the replay crew is] watching to make sure [the rule] hasn't been violated, they can correct a call if need be," Renteria said.

Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.