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

Andy Murray to coach Novak Djokovic at Indian Wells and Miami Open - The pair first worked together at the Australian Open in January and will continue ‘indefinitely’ according to Djokovic.

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