2009 ATP World Tour Finals – Singles

Novak Djokovic was the defending champion, but was eliminated in the round robin stage. Nikolay Davydenko won in the final 6–3, 6–4 against Juan Martín del Potro. Andy Roddick qualified for the tournament, but withdrew due to a left leg injury.

2009 ATP World Tour Finals – Singles

Novak Djokovic was the defending champion, but was eliminated in the round robin stage. Nikolay Davydenko won in the final 6–3, 6–4 against Juan Martín del Potro. Andy Roddick qualified for the tournament, but withdrew due to a left leg injury.