Local football enthusiasts will be treated to two derbies tomorrow afternoon. The Soweto derby, one of the biggest derby matches in the world, sees two giants lock horns in the Telkom Knockout semi-final at the FNB stadium. This comes one week after Orlando Pirates surprised Kaizer Chiefs 3-1 in the traditional derby in a League match. This time, the contest is a knockout, and the winner will romp home with at least 1.5-million rand in prize money. Excitement on the streets of Soweto and elsewhere has been building, with fans full of anticipation. Kaizer Chiefs is expected to come better prepared for this semi-final. Meanwhile, in the Pretoria derby tomorrow night, Mamelodi Sundowns takes on neighbours SuperSport United in another semi-final of the Telkom Knockout.