Novak Djokovic eased into the Western & Southern Open quarter-finals, but Roger Federer crashed out.
Roger Federer's US Open preparations took a hit as the world number three suffered a shock Western & Southern Open defeat to Andrey Rublev.
Stefanos Tsitsipas was sent packing following a shock defeat to Jan-Lennard Struff, while Alexander Zverev joined him out the door.
Stan Wawrinka prevailed in a topsy-turvy battle with Grigor Dimitrov, while Novak Djokovic and Roger Federer made it through to the last 16.
Roger Federer barely raised a sweat as he accounted for Juan Ignacio Londero 6-3 6-4 in Cincinnati on Tuesday.
After a mass walkout before Wimbledon, Roger Federer and Rafael Nadal have joined Novak Djokovic on the ATP player council.
Novak Djokovic can better Roger Federer's record tally of major titles if he maintains the high standards he has set, Tim Henman says.
After beating Roger Federer in a stunning Wimbledon final, Novak Djokovic savoured a "match that transcends our sport".
They have won 54 grand slams between them, but how much will Roger Federer, Rafael Nadal and Novak Djokovic's final tallies matter?
Novak Djokovic's Wimbledon triumph moved him to within four of Roger Federer's grand slam tally, but the Swiss remains unconcerned.