Although Chiefs lost the match 5-4 on penalties, Ntwari kept a clean sheet in the match, which went to extra time.
Towards the end of extra time, Ntwari refused to be substituted for Bvuma and went on to save Stellenbosch's first penalty.
This was an opportunity for the former TS Galaxy shot-stopper to show that he deserves to be the Chiefs number one goalkeeper ahead of Petersen and Bvuma.
That the Rwanda goalkeeper was being benched by Amakhosi coaches despite being solid in goal for his national team could be testimony that the Soweto giants have capable custodians.
This comes as Chiefs goalkeepers were being criticised as the club struggled to have a man they would call their number one.