Tennis Canada announced that Novak Djokovic has withdrawn from next month's National Bank Open in Toronto due to fatigue.
Swedish tennis player Mikael Ymer has been hit with an 18-month ban for an anti-doping violation.
Spanish phenom Carlos Alcaraz continues to show ominous signs of finding his feet on grass after dispatching Sebastian Korda in straight sets in London.
Forgotten ATP stars Milos Raonic and Kei Nishikori are back from injury and made winning starts in their respective returns this week.
Tennis great John McEnroe believes the era of the Big Three is finally coming to an end.
Novak Djokovic took a blow courtesy of a Cameron Norrie smash but otherwise dealt with the Briton without too much trouble to reach the quarter-finals of the Italian Open.