Flamengo will meet Independiente del Valle on Thursday and Barcelona de Guayaquil five days later.
The first half started slowly, but things quickly changed when Argentina's Gonzalo Martinez sent an indirect free-kick with surgical accuracy onto the head of Hamdallah, the Moroccan making no mistake from six yards to put his team ahead at the half-hour mark.
Only 4,985 fans will be in the stadium for Kaiserslautern against Dresden in the third tier.
Five minutes later, the crossbar denied Dortmund a greater lead before the break, as Jadon Sancho's header bounced off the woodwork.
Eight minutes later, things went from bad to worse for Duisburg as Volkmer felled Erling Haaland as the last man to receive his marching orders.
"We're going to call on the Brazilian Football Confederation (CBF) to make the Maracana an alternative to the beach," Rio mayor Marcelo Crivella told reporters. "Today the biggest problem Rio faces are the big crowds of people with no masks at the beach."
In Group D, Al-Nassr FC of Saudi Arabia continued their charge towards the round of 16 with a 2-0 win over Iran's Sepahan thanks to a brace from Abderazzaq Hamdallah.
Both SIPG and Zall started the game aggressively, but neither side managed a goal in the first half. SIPG broke the deadlock in the 59th minute when Australian striker Marko Arnautovic jumped to find the net with a power header. 11 minutes later, Australian midfielder Aaron Mooy scored his first goal in the CSL for SIPG and extended the lead to 2-0.
Kurt Zouma completed the scoring on 66 minutes, as his low shot from a corner was deflected past the unfortunate Ryan.
In a statement, the Beijing Ducks said the club had kept good communication with Lin and relevant parties, and had reached an agreement to extend Lin's contract before the California-born star's decision to leave.
Thiago started his career in Barcelona before moving to Munich in 2013. He arrived Anfield fresh from helping Bayern Munich winning the Bundesliga, German Cup and Champions League in the 2019-20 season.