Palmeiras, led by talented youngster Estevao Willian, who is set to join Chelsea, played well but were held by Porto in their opening clash.

Al Ahly kept them at bay in a tight first half, in which English referee Anthony Taylor sent off Palmeiras midfielder Raphael Veiga for a foul on Ahmed Zizo, before overturning his decision following a VAR review.

Palestinian striker Abou Ali headed Anibal Moreno's free-kick into his own net to hand Palmeiras the lead in the 49th minute.

Lopez finished coolly for the Brazilians' second 10 minutes later after Mauricio played him through on goal.

After play was suspended for 45 minutes for the weather warning, Palmeiras played out the remainder of the match comfortably without risking their advantage.

South American sides have come into the tournament strongly, in good condition given they are in the middle of their domestic seasons, and have stayed unbeaten to this point.