New York Knicks v Boston Celtics - Game Six

BOSTON, MA - MAY 3: Doc Rivers of the Boston Celtics argues a call by an official in the second half during Game Six of the Eastern Conference Quarterfinals of the 2013 NBA Playoffs on May 3, 2013 at TD Garden in Boston, Massachusetts. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Jim Rogash/Getty Images)