"It was a very even match, perhaps more difficult than the result showed," said Djokovic, who is seeking for an 18th Grand Slam title.
Meanwhile Southampton claimed a routine 2-0 victory at home to West Bromwich Albion, who is still searching for its first win of the campaign.
Al Nassr broke the deadlock with a penalty in the 35th minute before Abdi Mehdi Qara leveled for Persepolis just six minutes later.
Koeman had made no secret that he wanted the duo and the failure to sign Garcia leaves Barca looking especially lightweight in central defense, where they only have Gerard Pique and Clement Lenglet, with Ronald Araujo to provide cover.
In addition, the quality of the 10 member teams means there are no easy games for anyone; the region boasts four national sides in FIFA's current top 10 and seven in the top 25.
China's Shi Yanghe and Zhao Jiangqiong won the men's and the women's 65km races respectively.
Nadal will face Sebastian Korda, the son of 1998 Australian Open winner Petr Korda, in the next round. The American youngster secured his first appearance in a Grand Slam round of 16 by beating fellow qualifier Pedro Martinez 6-4, 6-3, 6-1 to advance.
Universidad Catolica midfielder Jose Carabali also earned his first national call-up for the matches in Buenos Aires on October 8 and Quito five days later.
Colombia will host Venezuela in Barranquilla on October 9 before facing Chile in Santiago four days later in the opening fixtures of the South American zone qualifiers.
Bayern stumbled and Hertha seized the chance to restore parity at 2-2 in the 72nd, after Cunha danced through the host's defence before beating goalkeeper Manuel Neuer into the top right corner.
After dominating the upper hand across the final quarter, Zhejiang kept up its all-win record in the ongoing 2020-2021 season.