Petro who eliminated pre-tournament favorites Mamelodi Sundowns in the quarter-finals will meanwhile look to maximize their home advantage and earn a favorable result ahead of the trip to Casablanca for the return tie next weekend.
The game will be a rematch of the last group stage meeting when the Moroccan giants thrashed Petro 5-1 to confirm their place on top of group D.
Overall in six meetings, Wydad has been the better side, winning four, losing once and drawing once. They have won once in Luanda, their 1-0 victory in last season's Champions League.
Wydad Coach Walid Regragui voiced his optimism, telling the press that the team was "determined to be a tough opponent." "We will do everything to make our fans happy," he said.
Wydad will look towards its history in the Champions League and seek for better tidings. Though the team has reached the semis six times in the last seven seasons, it has gone on to the final only twice, winning in 2017 and losing in the 2018-19 season.