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6/20/2014 11:04 P.M. ET

Home plate at center of two Wrigley replays

Pirates benefit from manager's challenge before umpires review goes against Bucs

CHICAGO -- The Pirates avoided an early deficit in their 6-3 loss to the Cubs on Friday afternoon when a manager's challenge resulted in a run being taken off the Cubs' side of the scoreboard.

With Chris Coghlan on third base and one out in the bottom of the first, Anthony Rizzo was struck out by Charlie Morton. When the ball skipped past catcher Russell Martin, Coghlan came home on what was ruled a wild pitch.

After review, replay officials confirmed Martin's and manager Clint Hurdle's contention that the pitch had hit Rizzo's left foot, hence it resulted in a post-strikeout dead ball, and the call was overturned.

In the the top of the next inning, the Pirates were unsuccessful in getting a run put on the board. Ike Davis tried to score from second as Pedro Alvarez singled with two outs and got caught in a rundown between first and second.

Catcher John Baker took a throw and tagged out the sliding Davis. A crew chief review requested by the Pirates did not find Baker in violation of the experimental Rule 7:13 involving illegal plate-blocking.

"Our understanding -- based on information that was shared -- was that we thought we had a potential obstruction," said Hurdle.

Did Davis feel that his path to the plate was blocked?

"Yeah, I saw a bit of the plate ... behind [Baker]," Davis said. "I don't think any of us really understand that rule, or what is or isn't obstruction."

Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. This story was not subject to the approval of Major League Baseball or its clubs.