Article Photos: Thunder notebook: Kevin Durant once again delivers 1/5

NBA BASKETBALL: Oklahoma City's' Kendrick Perkins (5) dunks the ball in front of Dallas' Brendan Haywood (33)  and Lamar Odom (7) during a preseason NBA game between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Tuesday, Dec. 20, 2011. Photo by Bryan Terry, The Oklahoman