Evans Rusike fired the only goal as Maritzburg United beat Sundowns 1 nil to book a place in the semi final of the MTN Cup.
Rusike who enjoyed a good game scored the goal in the 58th minute pouncing from close range.
Sundowns had their chances to either win or equalize with Billiat squandering chances that came his way.
Rusike was substituted in the 73rd minute following an inspiring play.
Billiat was substituted in the 80th minute after he glanced a header narrowly off target as Sundowns continued plumetting chances.