Croatia’s Goran Ivanisevic of the Obi UAE Royals in action against France’s Fabrice Santoro of the Micromax Indian Aces at the second leg of the International Premier Tennis League (IPTL) at the Mall of Asia Arena in Pasay city, south of Manila, Philippines, 07 December 2015. The league features five teams made out of a hybrid mix of current and former men’s and women’s players. EPA/MARK R. CRISTINO

US Serena Williams of team  in action during a match at the second leg of the International Premier Tennis League (IPTL) at the Mall of Asia Arena in Pasay city, south of Manila, Philippines, 07 December 2015. The league features five teams made out of a hybrid mix of current and former men’s and women’s players. EPA/FRANCIS R. MALASIG

Filipino fans catch a ball during a match at the second leg of the International Premier Tennis League (IPTL) at the Mall of Asia Arena in Pasay city, south of Manila, Philippines, 07 December 2015. The league features five teams made out of a hybrid mix of current and former men’s and women’s players. EPA/FRANCIS R. MALASIG

Spain’s Rafael Nadal looks on as Croatia’s Ivan Dodig of the Micromax Indian Aces dives for the ball against Canada’s Daniel Nestor and Czech Republic’s Tomas Berdych of the Obi UAE Royals in their doubles match at the second leg of the International Premier Tennis League (IPTL) at the Mall of Asia Arena in Pasay city, south of Manila, Philippines, 07 December 2015. The league features five teams made out of a hybrid mix of current and former men’s and women’s players. EPA/FRANCIS R. MALASIG

Australia’s Nick Kyrgios of the Singapore Slammers in action against Germany’s Philipp Kohlschreiber of the Japan Warriors during their men’s singles match at the second leg of the International Premier Tennis League (IPTL) at the Mall of Asia Arena in Pasay city, south of Manila, Philippines, 06 December 2015. The IPTL features five teams made out of a hybrid mix of current and former tennis players. EPA/MARK R. CRISTINO

Serbia’s Ana Ivanovic of the Obi UAE Royals in action against Australia’s Samantha Stosur of the Micromax Indian Aces at the second leg of the International Premier Tennis League (IPTL) at the Mall of Asia Arena in Pasay city, south of Manila, Philippines, 07 December 2015. The league features five teams made out of a hybrid mix of current and former men’s and women’s players. EPA/MARK R. CRISTINO