San Francisco Giants pitcher Santiago Casilla, center, hugs catcher Buster Posey after the Giants beat the Washington Nationals 3-2 to win Game 4 of baseball's NL Division Series in San Francisco, Tuesday, Oct. 7, 2014.(AP Photo/Eric Risberg)
San Francisco Giants relief pitcher Yusmeiro Petit (52) throws in the 12th inning of Game 2 of baseball's NL Division Series against the Washington Nationals in Nationals Park, Saturday, Oct. 4, 2014, in Washington. (AP Photo/Patrick Semansky)
St. Louis Cardinals' Kolten Wong celebrates with teammate Yadier Molina, left, after hitting a two-run home run during the seventh inning of Game 3 of baseball's NL Division Series against the Los Angeles Dodgers, Monday, Oct. 6, 2014, in St. Louis. (AP Photo/Jeff Roberson)
Los Angeles Dodgers' Yasiel Puig strikes out against St. Louis Cardinals pitcher Marco Gonzales during the seventh inning in Game 2 of baseball's NL Division Series in Los Angeles, Saturday, Oct. 4, 2014. (AP Photo/Mark J. Terrill)
St. Louis Cardinals first baseman Matt Adams celebrates after hitting a three-run home in the seventh inning of Game 4 of baseball's NL Division Series against the Los Angeles Dodgers, Tuesday, Oct. 7, 2014, in St. Louis.(AP Photo/Jeff Roberson)
Kansas City Royals' Salvador Perez, left, is congratulated by Erik Kratz after hitting a walk-off single in the 12th inning to defeat the Oakland Athletics 9-8 in the AL wild-card playoff baseball game Tuesday, Sept. 30, 2014, in Kansas City, Mo. (AP Photo/Jeff Roberson) (AP2014)
Los Angeles Angels' Kole Calhoun jumps after after he scored on a single by Albert Pujols as Howie Kendrick (47) watches, during the sixth inning against the Kansas City Royals in Game 2 of baseball's AL Division Series in Anaheim, Calif., Friday, Oct. 3, 2014. (AP Photo/Lenny Ignelzi)
Detroit Tigers first baseman Miguel Cabrera stands on the field after relief pitcher Joba Chamberlain was relieved in the eighth inning of Game 2 in baseball's AL Division Series against the Baltimore Orioles in Baltimore, Friday, Oct. 3, 2014. Baltimore won 7-6. (AP Photo/Nick Wass)
Baltimore Orioles designated hitter Nelson Cruz gestures after hitting a two-run home run during the sixth inning in Game 3 of baseball's AL Division Series against the Detroit Tigers, Sunday, Oct. 5, 2014, in Detroit. (AP Photo/Carlos Osorio)