St. Louis Cardinals

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St. Louis Cardinals starting pitcher Michael Wacha throws against the Pittsburgh Pirates in the first inning of a baseball game on Friday, May 9, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

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Pittsburgh Pirates starting pitcher Francisco Liriano throws against the St. Louis Cardinals in the first inning of a baseball game on Friday, May 9, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

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St. Louis Cardinals' Peter Bourjos, left, slides into third ahead if the tag by Pittsburgh Pirates third baseman Pedro Alvarez (24) with a triple in the fourth inning of a baseball game in the rain on Friday, May 9, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

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St. Louis Cardinals' Matt Carpenter (13) heads for second past Pittsburgh Pirates starting pitcher Francisco Liriano with a leadoff double in the first inning of a baseball game on Friday, May 9, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)

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Pittsburgh Pirates' Ike Davis (15) watches the ball in front of St. Louis Cardinals catcher Yadier Molina after making a base hit, driving in two runs, in the first inning of a baseball game against the St. Louis Cardinals on Friday, May 9, 2014, in Pittsburgh. (AP Photo/Keith Srakocic)