Branco Sports Productions presents three African Boxing Union championship bout on a full card at the Carousel Casino in Johannesburg, South Africa on Friday, July 25, billed as “Triple Header”. For the ABU Welterweight Championship, reigning titlist Hassan Saku, 9-5 (8), defends his belt against undefeated hot prospect Chris Van Heerden, 9-0-1 (7), over a…