1. Dirk Nowitzki
Photograph By Glenn James/Getty Images
The future Hall of Famer is still the face of the franchise, but this has been a brutal season for him, beginning with missing the first 27 games while recovering from arthroscopic surgery on his right knee. His scoring (15.2 points per game), rebounding (5.7) and field goal percentage (.423) are all his lowest since his rookie season in 1998-99.