Chicago Cubs' Anthony Rizzo (44) celebrates his home run off St. Louis Cardinals starting pitcher Adam Wainwright with Starlin Castro during the fifth inning of a baseball game on Friday, May 2, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)
Chicago Cubs' Anthony Rizzo watches his home run off St. Louis Cardinals starting pitcher Adam Wainwright during the fifth inning of a baseball game on Friday, May 2, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)
Chicago Cubs' Anthony Rizzo watches his home run off St. Louis Cardinals starting pitcher Adam Wainwright during the fifth inning of a baseball game on Friday, May 2, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)
Chicago Cubs' Anthony Rizzo hits a home run off St. Louis Cardinals starting pitcher Adam Wainwright during the fifth inning of a baseball game on Friday, May 2, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)
St. Louis Cardinals starting pitcher Adam Wainwright throws during the first inning of a baseball game against the Pittsburgh Pirates, Sunday, April 27, 2014, in St. Louis. (AP Photo/Jeff Roberson)