Article Photos: OKC THUNDER: Closing the door has been the key 10/21

Oklahoma City's Nick Collison (4) grabs a rebound in front of Dallas' Rodrigue Beaubois (3) and Dirk Nowitzki (41) during the NBA basketball game between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Monday, March 5, 2012. The Thunder won, 95-91. Photo by Nate Billings, The Oklahoman