News about Jakob's illness or injury spread the day of the prelims, Jakob surges brilliantly in the semis to win and is gesturing and hyping the crowd up, looks unbeatable. But maybe if you think he really does have an issue, and he actually was off those races, maybe he's getting nervous that all his great performances (3:27, 7:54) won't be good enough, so he's trying to mask it by putting on a show, and maybe Kerr saw through it.