A.J. Pierzynski will start at catcher in place of the injured Yadier Molina for the St. Louis Cardinals on Tuesday in the third game of the NL Championship Series against the San Francisco Giants.St. Louis Cardinals' Yadier Molina hunches over after hitting into a double play during the sixth inning in Game 2 of the National League baseball championship series against the San Francisco Giants Sunday, Oct. 12, 2014, in St. Louis.San Francisco Giants manager Bruce Bochy, left, and St. Louis Cardinals catcher A.J. Pierzynski chat before Game 3 of the National League baseball championship series Tuesday, Oct. 14, 2014, in San Francisco.