Washington Nationals catcher Jesus Flores, right, tags out Philadelphia Phillies' Placido Polanco at home after Polanco tried to score on a fielder's choice by Phillies' Carlos Ruiz in the sixth inning of a baseball game, Monday, May 21, 2012, in Philadelphia. (AP Photo/Matt Slocum)

Washington Nationals catcher Jesus Flores, right, tags out Philadelphia Phillies' Placido Polanco at home after Polanco tried to score on a fielder's choice by Phillies' Carlos Ruiz in the sixth inning of a baseball game, Monday, May 21, 2012, in Philadelphia. (AP Photo/Matt Slocum)