Valter, 22, broke free during the final few kilometers and the peloton was unable to catch him.
At Rio de Janeiro's Olympic stadium, former Chelsea forward Salomon Kalou made his debut for Botafogo but could not inspire the hosts to victory over Coritiba.
Djokovic will face Jan-Lennard Struff for a spot in the round of 16. The German needed one hour and 40 minutes to move past American Michael Mmoh 6-2, 6-2, 7-5.
Earlier, sixth seed Petra Kvitova of the Czech Republic edged past Ukraine's Kateryna Kozlova 7-6 (3), 6-2, and eighth seed Petra Martic of Croatia beat fellow Ukrainian Kateryna Bondarenko 6-3, 6-4 to also advance into third round. Enditem
Photos of Bale in the stands in those games showed the forward looking bored and willing to show that boredom by appearing to be half asleep at times, knowing he would not play.
The result lifted Flamengo to fifth in the 20-team standings, five points behind leaders Internacional
LAUSANNE, Sept. 2 (Xinhua) -- Armand Duplantis from Sweden set a season's best 6.07 meters in the pole vault at the Wanda Diamond League meeting here on Wednesday, securing the highest outdoor pole vault jump for 26 years.
The women's pole vault event was also won by a Swede, as Angelica Bengtsson finished with a best jump of 4.72 meters. Enditem
"I didn't realize at all that it was unauthorized," Alaphilippe said, "But if that's how it is, then no worries. I'll pick myself up again and we'll forget about it."
American rider Quinn Simmons took silver and bronze went to Damien Howson from Australia. Enditem
KUALA LUMPUR, Sept. 3 (Xinhua) -- Badminton World Federation (BWF) President and Olympic gold medalist Poul-Erik Hoyer Larsen revealed on Thursday that he is receiving treatment after being diagnosed with Parkinson's disease.