Mosimane would have been wanting to please the Ahly supporters after missing out on the Egyptian Premier League title.
El-Gaish secured their spot in the Super Cup after their participation in the Egypt Cup last year which they ended up losing to Mosimane's charges.
Mosimane changed almost his entire starting lineup with legendary goalkeeper Mohamed El Shenawy returning between the sticks. Percy Tau was not involved as 'the Lion of Judah' is still easing his way back from a hamstring injury sustained on Bafana Bafana duty earlier this month. Hossam Hassan and Luís Miquissone were included on the bench.
El-Gaish were defending in numbers, leaving little room for Ahly to operate. Two shots in quick succession from Ahly wingers Hussein El-Shahat and Mohamed Taher were well blocked.
Ahly striker and their top scorer Mohamed Sherif missed the first clear-cut opportunity of the match on the stroke of half-time when he was played in by Amr El-Sulaya but after racing clear fired wide of the right-hand post.
The Red Devils wasted another one in the 54th minute. Ali Maaloul skipped past his marker on the left hand side of the area and cut the ball back for Sherif, whose sidefooted effort from close range went wide.
Mozambican winger Miquissone, who joined in the off-season, replaced Taher on the hour mark to make his debut. Mohamed Afsha then played a one-two with Miquissone in the box but his angled, close-range shot was saved by assam with his fingertips.
Bassam then tipped over a powerful long-range shot from El-Shahat as Ahly piled on the pressure but couldn't find a way through with the match going to extra-time and then penalties, where the unfancied El-Gaish prevailed 3-2 on the night.