David Ferrer of Spain returns the ball to Fernando Verdasco of Spain during his round of sixteen match at the BNP Paribas 2014 Masters tennis tournament in Paris, France, 30 October 2014. EPA/YOAN VALAT

Roger Federer of Switzerland reacts during his second round match against Jeremy Chardy of France at the BNP Paribas 2014 Masters tennis tournament in Paris, France, 29 October 2014. EPA/IAN LANGSDON

Fernando Verdasco of Spain returns the ball to David Ferrer of Spain during his round of sixteen match at the BNP Paribas 2014 Masters tennis tournament in Paris, France, 30 October 2014. EPA/YOAN VALAT

Andy Murray of Britain returns the ball to Julien Benneteau of France during their second round match at the BNP Paribas 2014 Masters tennis tournament in Paris, France, 29 October 2014. EPA/IAN LANGSDON

Roberto Bautista Agut of Spain reacts after winning his second round match against Richard Gasquet of France at the BNP Paribas 2014 Masters tennis tournament in Paris, France, 29 October 2014. EPA/IAN LANGSDON