Novak Djokovic was surprisingly upbeat after his shock Indian Wells defeat at the hands of Botic van de Zandschlup - but his smile has left some onlookers concerned

Novak Djokovic was all smiles in his post-match press conference after a shock defeat at Indian Wells, but his reaction to the loss has raised suspicions over his mental state

At the Indian Wells Masters 1000, Draper extinguished the ambitions of young Brazilian star Joao Fonseca and then eliminated American ace Jenson Brooksby yesterday. As everyone knows, conditions are not easy in California due to the wind and the organizers' decision to change surface after 25 years.

Novak Djokovic suffered his third successive defeat after bowing out of Indian Wells via a shock loss to Botic van de Zandschlup.