Anyone seeking the negative effects of the NBA's compressed season should look no further than Dirk Nowitzki's performance against the San Antonio Spurs on Thursday night. With the Dallas Mavericks playing their sixth game in eight nights, the team's star forward scored only six points on 3-of-11 shooting in a 93-71 loss. It was his lowest scoring output since he put up five in a Dec. 18, 2009, game against Houston that he left early because of an injury.