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.
He doubled Flamengo's lead with a low shot that rebounded in off the post before Rodriguinho pegged a goal back for the hosts.
The 23-year-old Dutchman has signed a five-year contract at Old Trafford, with an option to extend by a further year. The transfer fee is 39 million euros (46 million U.S. dollars), which may increase to 44 million euros if certain clauses are met.
Fiorentina loanee Pedro put the visitors ahead in just the second minute by pouncing on an errant pass and sliding home from close range.
Flamengo netted twice in quick succession after the restart: first with a stunning first-time effort from playmaker Everton Ribeiro and then with a cool Arrascaeta finish after a counterattack.
It was a bizarre way for the Frenchman to lose the jersey which he had kept for three days after winning the stage two.
BEIJING, Sept. 3 (Xinhua) -- The English Premier League announced on Thursday that they have terminated their cooperation with Chinese broadcaster PP Sports.
Lurie took charge of the Eagles in 1994, and led the team to its first Super Bowl title in 2017.
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
"Kyle played a fantastic first set," added Djokovic. "He didn't do much wrong, he served very well and was aggressive from the back of the court. Usually his forehand is a weapon, but his backhand, especially in the first set, was very strong, very solid."
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