United produced the upset of the first round when they saw off Cape Town City 1-0 last month to advance to the last 16, and the Mbombela-based side are now hoping to continue where they left off when they host Amakhosi.
And Nkosi says they are going to count on home-ground advantage to get the result against the Soweto giants at Kabokweni Stadium tomorrow.
"I must say that I am scared a little bit but you know football. It all goes down to our preparation for the game and how we handle the pressure,” Nkosi tells snl24.com/kickoff.
"I think we will do well since we are playing at home,” he adds.
Nkosi has confessed he grew up supporting Amakhosi and says he is looking forward to meeting some of his heroes on the field.
"I am a Kaizer Chiefs fan. It will be quite interesting to play against some of my favourite players. I think if we do our job well we have a great chance to come away victorious,” says Nkosi.