Article Photos: OKC Thunder: Thunder struggles mightily when it comes to defending 3-point shots 1/20

Dallas' Dirk Nowitzki (41) grabs a rebound next to Oklahoma City's Nick Collison (4) during an NBA basketball game between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Sunday, March 16, 2014. Photo by Nate Billings, The Oklahoman