Novak Djokovic said Roger Federer set the tone for excellence, after the Swiss great announced he would retire from the sport he dominated following next week's Laver Cup in London.
Federer, 41, who redefined the sport with his artistry and grace and collected 20 Grand Slam titles, announced on Thursday that injury issues in the last few years meant that he would call time on his glittering career at the men's team event.
Tributes poured in after Federer's announcement and Djokovic heaped more praise on the player he shared an enduring rivalry with during his own rise to the top of the men's game.
