Psychological blows can be inflicted in various places in sport — in the players' tunnel, in a press conference or, if you're an American ice-skater, on your opponent's knee with an iron bar.
Now, ahead of Simeon Williamson's 100m sprint showdown with Usain Bolt and Asafa Powell at Crystal Palace tomorrow, we can also add on a rope harness at a Jamaican adventure park'.
Williamson told us his alpha-male mask slipped in front of track rival Powell while they trained on the Caribbean island during the winter.
Taking time out from their hectic schedule, the pair went to a park in Ocho Rios, where Williamson lost his cool while swinging through the forest canopy.
"I was scared and Asafa has video of me screaming," admitted the 23-year-old. "It probably gives him a bit of an edge before Crystal Palace. But there was a big drop on that rope."
Eriksson's other reason for getting tied in Notts
Forget the eye-watering salary, share options and promotion bonuses.
The most telling number in Sven-Goran Eriksson's decision to become a director of football at League Two side Notts County might just lie in the oft-quoted statistic about Nottingham boasting a men to women ratio of roughly 1:3.
It's enough to make anyone's unfeasibly expensive rimless spectacles steam up.
