Article Photos: Thunder notebook: Defending Dirk Nowitzki definitely demoralizing 12/39

Oklahoma City's Serge Ibaka (9) tries to get past Dirk Nowitzki (41) of Dallas  during game 1 of the Western Conference Finals in the NBA basketball playoffs between the Dallas Mavericks and the Oklahoma City Thunder at American Airlines Center in Dallas, Tuesday, May 17, 2011. Photo by Bryan Terry, The Oklahoman