He is carrying a knee injury.
Ndumiso has already joined his compatriots in camp but he misssed the first training session at the UJ Stadium, Soweto Campus held on Monday afternoon (21 March).
Meanwhile defender Anele Ngcongca sat out the same training session due to an abdominal muscle strain. Andile Jali trained on his own as he is nursing a dislocated shoulder, while Thabo Matlaba could not finish the session because of a painful toe.
The trio is still under medical observation but are expected to be ready for the clash against Cameroon on Saturday, 26 March 2016 at Stade Omnisport de Limbe in Limbe, Cameroon.
Kick-off is at 15h30 local time (16h30 South African time).
The return leg will be played at the Moses Mabhida Stadium in Durban on Tuesday, 29 March 2016.
Kickoff is at 19h00.
NB: Bafana Bafana will have two training sessions Tuesday, 22 March at the UJ Stadium in Soweto – the first will be at 10h00 with the second scheduled for 15h30. Media interviews will be held immediately afterwards.