Ahly's Coach Marcel Koller - Photo Courtesy of Ahly official X account
Ahly secured a narrow 1-0 victory in Tanzania last week and will look to see out the tie at Cairo Stadium on Friday.
"I expect the match against Simba to be very difficult, just like the first leg," Koller said.
"We saw a close level in the first encounter and Simba will do everything to win and overturn the result," he added.
Koller emphasised the importance of focus and determination, calling for strong backing from the home crowd.
"We achieved a positive result in the first leg which gives us confidence, but there is a difference between confidence and arrogance," he said.
"I informed the players of this immediately after the match in Tanzania. We need to be fully concentrated and determined to finish the job." the Swiss tactician added.
"We hope that our fans will be present in the allowed capacity and we need them to support us throughout the match," he concluded.
Ahly require a win or draw to progress to the semi-finals, where they will face the winner between Petro Atletico and TP Mazembe.
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