Poland’s Agnieszka Radwanska of the Indian Aces in action against Australia’s Ajla Tomljanovic of the Philippine Mavericks during their women’s singles match of the International Premier Tennis League (IPTL) at Dubai Duty Free Tennis Stadium in Dubai, United Arab Emirates, 15 December 2015. EPA/ALI HAIDER

Micromax Indian Aces players Rohan Bopanna (R) and Ivan Dodig (L) celebrate a point against Legendari Japan Warrios during their match of the International Premier Tennis League (IPTL) at Dubai Duty Free Tennis Stadium in Dubai, United Arab Emirates, 14 December 2015. EPA/ALI HAIDER

Kristina Mladenovic of OBI UAE Royals in action against Karolina Pliskova of OUE Singapore Slammers during their match of the International Premier Tennis League (IPTL) at Dubai Duty Free Tennis Stadium in Dubai, United Arab Emirates on 15 December 2015. EPA/ALI HAIDER

Australia’s Ajla Tomljanovic of the Philippine Mavericks in action against Poland’s Agnieszka Radwanska of the Indian Aces during their women’s singles match of the International Premier Tennis League (IPTL) at Dubai Duty Free Tennis Stadium in Dubai, United Arab Emirates, 15 December 2015. EPA/ALI HAIDER

Bernard Tomic of Micromax Indian Aces in action against Philipp Kohlschreiber of Legendari Japan Warrios during their match of the International Premier Tennis League (IPTL) at Dubai Duty Free Tennis Stadium in Dubai, United Arab Emirates, 14 December 2015. EPA/ALI HAIDER