May 02, 2011; Los Angeles, CA, USA; Dallas Mavericks power forward Dirk Nowitzki (41) holds on to a rebound as Los Angeles Lakers shooting guard Kobe Bryant (24) and small forward Ron Artest (15) defend during the 4th quarter of game one of the second round of the 2011 NBA playoffs at the Staples Center. Mavericks won 96-94.; Mandatory Credit: Jayne Kamin-Oncea