(ROUGH CUT - NO REPORTER NARRATION)<br/> STORY: An antelope tackled a mountain biker during a race in Albert Falls Dam, a nature park approximately 500 km (311 miles) southeast of Johannesburg.<br/> Dramatic footage taken by cyclist Travis Walker who was riding behind Evan van der Spuy shows a large antelope crashing into the cyclist, knocking him down and the antelope running away.<br/> Media reports say the cyclist was taken down by a Red Harteebest, a large antelope with a sloping back and a long narrow face. They are heavy, with adult bulls weighing an average of 150 kilograms (330 lbs).<br/> These swift antelopes are known to be territorial, often presenting themselves prominently on mounds.<br/> After the crash, van der Spuy could be heard groaning, getting up and looking at his shattered helmet.<br/> Van der Spuy's message which he later posted on social networking sites said he was "stable with nothing more than a stiff neck."
