History books will show that Kevin Anderson came out on top against John Isner in a 7-6(6) 6-7(5) 6-7(9) 6-4 26-24 epic that lasted six hours and 36 minutes - the longest ever semi-final at Wimbledon - but those numbers fail to illustrate the astonishing feats of endurance shown by the two gladiators on the most famous stage in tennis. (Photo: AFP)