Dallas Mavericks forward Dirk Nowitzki (41) shoots against Washington Wizards forward Jan Vesely (24) during the second half of an NBA game, Tuesday, Jan. 1, 2013, in Washington. Dallas won 103-94. (AP Photo/Nick Wass)

Photo by: Nick Wass

Dallas Mavericks forward Dirk Nowitzki (41) shoots against Washington Wizards forward Jan Vesely (24) during the second half of an NBA game, Tuesday, Jan. 1, 2013, in Washington. Dallas won 103-94. (AP Photo/Nick Wass)