Tutoring English, vocabulary is always interesting. The tutor mentions brinkmanship.
willingness to risk a worse outcome than losing the game would be, in order to win the game.
Brinkmanship is a word I heard more often in the 80s than today. It usually described a country’s stance in an international negotiation. However, it also occurs in sports: for instance, a player might risk injury to make a spectacular play.
Source:Oracle Tutoring by Jack and Diane, Campbell River, BC.