The Brazilians have booked a spot in the semi-finals of the continental competition after topping Group B with nine points.
“Sundowns will win it because every player has the heart of a lion. They have shown incredible hunger and team spirit,” Oliphant told Daily Sun.
“The mere fact they went to Algeria and beat their champions (ES Setif) 2-0 was a magnificent achievement. Then they went on to beat Zamalek in Cairo and in Tshwane.
“That is unbelievable. Pitso has to be given a lot of credit for the way he has led and coached Sundowns.”
Sundowns could play Zesco United or Wydad Casablanca in the semi-final. The teams are currently tied on seven points at the top.