Thunder won't have an easy time keeping this core together - Article Photos 1/1

From left, Oklahoma City's Russell Westbrook (0), Kendrick Perkins (5), Kevin Durant (35), James Harden (13), and Serge Ibaka (9) gather during the NBA basketball game between the Denver Nuggets and the Oklahoma City Thunder in the first round of the NBA playoffs at the Oklahoma City Arena, Wednesday, April 27, 2011. Photo by Bryan Terry, The Oklahoman.