St. Louis Cardinals' Oscar Taveras watches his solo home run during the fifth inning of a baseball game against the San Francisco Giants Saturday, May 31, 2014, in St. Louis. (AP Photo/Jeff Roberson)
San Francisco Giants starting pitcher Yusmeiro Petit throws during the first inning of a baseball game against the St. Louis Cardinals Saturday, May 31, 2014, in St. Louis. (AP Photo/Jeff Roberson)
St. Louis Cardinals' Oscar Taveras watches his solo home run during the fifth inning of a baseball game against the San Francisco Giants Saturday, May 31, 2014, in St. Louis. (AP Photo/Jeff Roberson)
St. Louis Cardinals' Oscar Taveras rounds the bases after hitting a solo home run during the fifth inning of a baseball game against the San Francisco Giants Saturday, May 31, 2014, in St. Louis. (AP Photo/Jeff Roberson)
St. Louis Cardinals' Oscar Taveras, left, is congratulated by third base coach Jose Oquendo after hitting a solo home run during the fifth inning of a baseball game Saturday, May 31, 2014, in St. Louis. (AP Photo/Jeff Roberson)
San Francisco Giants' Hector Sanchez, right, watches his two-run single as St. Louis Cardinals' Tony Cruz looks on in the seventh inning in a baseball game on Friday, May 30, 2014, at Busch Stadium in St. Louis. (AP Photo/Bill Boyce)
Bonnie, right, and Hilary Bodiford, of Lebanon, Ill., sit in a light rain before a baseball game between the St. Louis Cardinals and the San Francisco Giants, Friday, May 30, 2014, at Busch Stadium in St. Louis. (AP Photo/Bill Boyce)
San Francisco Giants' relief pitcher Juan Gutierrez (57) reacts after his team's victory over the St. Louis Cardinals in a baseball game on Friday, May 30, 2014, at Busch Stadium in St. Louis. (AP Photo/Bill Boyce)
San Francisco Giants' Brandon Hicks, right, forces out St. Louis Cardinals' Allen Craig (21) and completes the double play as Cardinals' Jhonny Peralta is out at first in the fourth inning in a baseball game on Friday, May 30, 2014, at Busch Stadium in St. Louis. (AP Photo/Bill Boyce)
San Francisco Giants' starting pitcher Madison Bumgarner singles against the St. Louis Cardinals in the first inning in a baseball game on Friday, May 30, 2014, at Busch Stadium in St. Louis. (AP Photo/Bill Boyce)
San Francisco Giants' Michael Morse follows through on a broken-bat single against the St. Louis Cardinals in the first inning in a baseball game on Friday, May 30, 2014, at Busch Stadium in St. Louis. (AP Photo/Bill Boyce)
St. Louis Cardinals starting pitcher Adam Wainwright throws against the San Francisco Giants in the first inning in a baseball game on Friday, May 30, 2014, in St. Louis. (AP Photo/Bill Boyce)