"Andre De Grasse was aiming for a chance to dethrone Jamaica’s Usain Bolt as the fastest man in the world. But the day before the start of the 100 metre competition, the Canadian sprinter announced a hamstring tear had forced him to withdraw. Bolt had his own dramatic hamstring injury in what was likely his final race. "

Image Credit - By BruceBlaus - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=44924608