Nov 14, 2017; Dallas, TX, USA; Dallas Mavericks forward Dirk Nowitzki (41) and guard J.J. Barea (5) and forward Maximilian Kleber (42) and guard Dennis Smith Jr. (1) walk off the court after the loss to the San Antonio Spurs at the American Airlines Center. The Spurs defeat the Mavericks 97-91.; Mandatory Credit: Jerome Miron