Canada’s Milos Raonic serves against Japan’s Tatsuma Ito during the Davis Cup world group first-round singles match in Vancouver, British Columbia, Canada, 06 March 2015. EPA/BEN NELMS

Serbia Novak Djokovic (L) and M (R), of Serbia returns a ball during their Davis Cup World Group first round doubles tennis match against Croatia’s Marin Draganja and Franko Skugor in Kraljevo, Serbia, 07 March, 2015. EPA/KOCA SULEJMANOVIC

France’s Gael Monfils returns the ball to Germany’s Philipp Kohlschreiber during their singles match of the Davis Cup World Group first round tie between Germany and France in Frankfurt, Germany, 06 March 2015. EPA/ARNE DEDERT

Czech’s tennis players Adam Pavlasek (L) and Jiri Vesely react against Australian’s’ players Lleyton Hewitt and Samuel Groth during the Davis Cup World Group match first round doubles tennis match between Australia and the Czech Republic in Ostrava, Czech Republic, 07 March 2015. EPA/MARTIN SIDORJAK

Australia’s Captain Wally Masur celebrates with Thanasi Kokkinakis (L) after defeating Lukas Rosol of the Czech Republic during the Davis Cup World Group match first round tennis match between Australia and the Czech Republic in Ostrava, Czech Republic, 06 March 2015. EPA/MARTIN SIDORJAK

Borna Coric of Croatia returns the ball to Viktor Troicki of Serbia during their singles match of the Davis Cup World Group first round tie between Serbia and Croatia in Kraljevo, Serbia, 06 March 2015. EPA/KOCA SULEJMANOVIC