Flamengo remain second in the group with six points from three matches but with a negative goal difference.
The clash between last season's Premier League and Championship winners was the most eagerly anticipated match of the new campaign's first weekend, and the two sides duly served up a thriller at Anfield.
The 29-year-old midfielder joined the Reds with a reported fee of 20 million pounds (about 25.8 million US dollars) for four years to become the club's second signing of the summer transfer window, following Kostas Tsimikas in August.
The two sides meet again on the same ground on Thursday.
But Bahabri gave his side all three points after his long-range effort was deflected into the net in the final minute of stoppage time.
The result at more than 3,600m above sea level in Bolivian capital La Paz meant Palmeiras now have three wins from as many matches to hold a six-point lead over Guarani, who are second in the group.
The two sides went into the game with a point separating them; with Al-Nassr in second place with four points needing a win to keep them at arm's length from third-placed Sepahan.
Zhao defeated amateur Oliver Brown 3-0 in the group opener and went on to beat Nigel Bond 3-1. The world no. 29 secured his top position in the group despite a loss to Liam Highfield 3-0, as the other three players of his group drew with each other in their encounters.
Any deal would almost certainly see Real Madrid continue to pay part of the wages of a player whose relationship with coach Zinedine Zidane has broken down completely in recent months. Enditem
Lucien Favre then brought on Marco Reus for his return after a long injury lay-off, and the German international paid back his trust seconds later, beating Weinkauf following a free-kick at the hour mark.
RIO DE JANEIRO, Sept. 18 (Xinhua) -- Uncapped Palmeiras teenager Gabriel Menino was Friday named in Brazil's squad for their opening 2022 FIFA World Cup qualifiers against Bolivia and Peru.