Also on Sunday, Wales edged Bulgaria 1-0 to top the second-tier Group B4, while Ireland lost 1-0 at home to Finland.
Bennett became the sixth Irishman to win a stage at the Tour and ensured he now has stage wins at all three of cycling's Grand Tours. He won three at the Giro d'Italia in 2018 and two at the Vuelta a Espana in 2019.
"As a result of the increase in the number of COVID-19 cases in Hungary, the Hungarian Government has introduced entry restrictions that make it now impossible for foreigners to enter Hungary. Foreigners will only be allowed to enter Hungary in the case that it is highly necessary," the organizers notified participants.
"He's a very solid player, maybe doesn't possess any big weapons, but every shot is very good," Djokovic said of Busta. "He returns a lot of balls, so I've got to be ready for a lot of exchanges. It's going to be a demanding match physically and mentally. Hopefully I'll be able to continue the good performance that I had tonight."
Due to the COVID-19 pandemic, nearly all international sports events including table tennis came to a grinding halt early in the year.
In men's draw, second seed Dominic Thiem of Austria celebrated his 27th birthday by notching a comfortable 6-3, 6-3, 6-2 second-round victory over India's Sumit Nagal.
Djokovic's unexpected exit ends both his 26-match winning streak this year and his attempt to win his 18th Grand Slam title, with the drama also sending Carreno Busta into the men's quarterfinals.
The 52-year-old replaces Alfonso Sosa, who was sacked on Friday after a 2-0 home defeat to Leon, a result that left Necaxa 15th in the 18-team standings with just two wins from eight matches.
The women's one-hour race saw a close battle between Hassan and Kenya's world marathon record-holder Brigid Kosgei. The duo stayed well ahead of the world record pace as they exchanged the lead several times but neither managed to break clear.
The 33-year-old striker announced his "U-turn" 11 days after informing the club that he wanted to leave this summer and arguing that a clause in his contract meant he could leave for free.
It is also the second F1 victory for the Faenza-based squad, following Sebastian Vettel's equally unlikely win at the 2008 Italian Grand Prix.