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

Photo by: Matt Slocum

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