Mngqithi's side thrashed Gallants 4-0 in a Betway Premiership encounter last week with a goal apiece from Junior Dion and Isaac Cisse, and a brace from Thokozani Khumalo.
They have enjoyed a solid start to their league season and remain the only team to beat Mamelodi Sundowns.
But heading into Sunday's clash, Mngqithi admits their dream of a place in the cup final will not be realised if his players get ahead of themselves.
He explained on FARPost: "When players start to talk about the final when we have not played the final, that is a problem for me.
"It means now you are getting ahead of yourself, and you will be disappointed if you don’t get there.
"But rather if you give your everything to make sure that you are able to arrive at the final, then you can talk about the final because you are in the final.”
Arrows come into this game on the back of a 3-1 defeat to Orlando Pirates as Gallants last lost 1-0 to Durban City.
"Because some of them have never tasted this thing. Even winning back-to-back matches is something they are not accustomed to,” Mngqithi added. "So, it's very important now to try and clamp down on the big heads that we are starting to see so that they focus on the job at hand."
Kaizer Chiefs DStv Diski Challenge coach Vela Khumalo has been named as one of the assistant coaches for the Carling All Stars ahead of their highly anticipated clash against Orlando Pirates at Moses Mabhida Stadium on Saturday.
Orlando Pirates midfielder Cemran Dansin is still buzzing from the goal that earned him the Betway Premiership Goal of the Month award—his very first in South Africa's top-flight.
Fan power has once again take centre stage in the Carling Cup with Manqoba Mngqithi chosen to lead the Carling All Star XI after topping the public vote.
Orlando Pirates coach Abdeslam Ouaddou has highlighted Relebohile Mofokeng as the embodiment of the club's long-term vision, insisting the young midfielder represents the mentality required to drive the Buccaneers to the league title.
