WATCH: Tennis stars Jack Sock, Nick Kyrgios, Alexander Zverev hit Chicago nightclub

var vclk_options = {sid:97892,media_type:5,version:"1.4"};   They were on the opposite sides of the court a couple of days back. But, Team Europe and Team World players reunited to enjoy a night out More...

WATCH: Roger Federer misses easiest of shots after opponent Jack Sock’s bizarre gesture

Roger Federer did what he always does – exhibiting sensational display of tennis. He pulled off a 6-4 7-6 win over Jack Sock in the opening encounter of the year-ending ATP Finals in London on Sunday, Yet, More...