Hepburn sustained an elbow injury in training late last week and has been advised that he cannot compete by his doctor.
Cape Town local athlete Anthony Mailer, fighting out of Table View’s Panther Fighting Arts, has stepped in to face Mulumba.
Mailer will be making a dream debut in front of his home crowd.
EFC 30, presented by BetXchange.com, takes place on Thursday 05 June 2014 at the GrandWest Grand Arena, Cape Town. Tickets on sale at www.computicket.com. Book your cinema ticket to all fights live and in HD at www.sterkinekor.com. Watch the entire event live, from anywhere on the globe, via online streaming at efcafrica.tv.