Copa Desafio Internacional Buenos Aires, Argentina December 7, 2006 Surface - Hard (Indoor) Singles: 1. Tommy Robredo 2. Dmitry Tursunov 3. Augustin Calleri 4. Juan Martin del Potro Juan Martin del Potro (ARG) d. Tommy Robredo (ESP) 5-7 6-3 6-2 Dmitry Tursunov (RUS) d. Jose Acasuso (ARG) 7-6(2) 6-2 Augustin Calleri/Juan Martin del Potro (ARG) d. Dmitry Tursunov/Tommy Robredo (RUS/ESP) (11-9) (Super TB)