Australia’s Bernard Tomic returns the ball to Switzerland’s Stanislas Wawrinka during their second round match at the BNP Paribas 2015 Masters tennis tournament in Paris, France, 03 November 2015. EPA/IAN LANGSDON

Ukraine’s Alexandr Dolgopolov serves the ball to Spain’s David Ferrer during their second round match at the BNP Paribas 2015 Masters tennis tournament in Paris, France, 03 November 2015. EPA/IAN LANGSDON

France’s Gael Monfils reacts during his round 1 match against France’s Benoit Paire at the BNP Paribas 2015 Masters tennis tournament in Paris, France, 02 November 2015. EPA/IAN LANGSDON

Italy’s Fabio Fognini returns the ball to Australia’s Bernard Tomic during their first round match at the BNP Paribas 2015 Masters tennis tournament in Paris, France, 02 November 2015. EPA/IAN LANGSDON

France’s Benoit Paire returns the ball to France’s Gael Monfils during their round 1 match at the BNP Paribas 2015 Masters tennis tournament in Paris, France, 02 November 2015. EPA/IAN LANGSDON