World tennis champion player Novak Djokovic and the president of the International Olympic Committee (IOC) praised the United Nations on Friday for establishing the international day of sports to promote global development and peace, dpa reported. Djokovic and Rogge spoke at the UN headquarters in New York after the General Assembly passed a resolution designating April 6 as the international day of sport. "I hope this international day will motivate each of us to invest in every way possible additional efforts in cultivating the intrinsic sporting values such as fair play, team work and respect for opponents," Djokovic said. "These ideals are universal: every successful society is built on them." -- SPA 20:31 LOCAL TIME 17:31 GMT تغريد