Novak Djokovic paid tribute to rival Roger Federer in a classy speech at the Laver Cup following the Swiss star's retirement from tennis.
Federer called time on his legendary career after he and doubles partner Rafael Nadal were beaten 4-6 7-6 11-9 by Jack Sock and Frances Tiafoe. It was an emotional farewell, with both Federer and Nadal breaking down in tears.
The pair are part of tennis' 'Big Four', along with Djokovic and Andy Murray, and the quartet have dominated men's tennis for the majority of the 21st century. And after Djokovic beat Tiafoe 6-1 6-3 in his first match of the weekend, he paid tribute to Federer.