Fourth seed Naomi Osaka of Japan booked her place in the third round with a comfortable 6-1, 6-2 win over Italy's Camila Giorgi.
There were also second round wins for fourth seed Stefanos Tsitsipas of Greece, fifth seed Alexander Zverev of Germany and seventh seed David Goffin of Belgium.
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.
With his final stage win, Valter became the overall winner of this year's Tour de Hongrie.
It was a bizarre way for the Frenchman to lose the jersey which he had kept for three days after winning the stage two.
WASHINGTON, Sept. 2 (Xinhua) -- Top seed Karolina Pliskova of the Czech Republic suffered a surprise defeat to France's Caroline Garcia in the second round of the US Open on Wednesday.
PP Sports, owned by Chinese retail giant Suning Group, had signed a three-year deal with Premier League in 2016. The broadcaster has reportedly withheld a payment of 160 million pounds rights fees which were due to happen in March.
Luneng, who lost to Dalian Pro 1-0 in the last round, hit the woodwork twice during the game against Suning.
"We are delighted to enter this exciting new partnership with TCL, following our hugely successful collaboration over the last two years," FIBA Secretary General Andreas Zagklis said.
PP Sports released a statement on Thursday night, claiming the termination was just a "strategic adjustment".
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.