what does cap stand for in world cup
Cap (sport) The act of awarding a cap is now international and is applied to other sports. Although in some sports physical caps may not now always be given (whether at all or for each appearance) the term "cap" for an international or other appearance has been retained as an indicator of the number of occasions on which a sportsperson has represented a team in a particular sport. Thus, a "cap" is awarded for each game played and so a player who has played x games, for the team, is said to have been capped x times or have won x caps.
List of FIFA World Cup hat-tricks The first hat-trick was scored by Bert Patenaude of the United States, playing against Paraguay in 1930; the most recent was by Cristiano Ronaldo of Portugal, playing against Spain in 2018.