Why did Portugal play the play-offs in the 2022 World Cup?

Because according to UEFA regulations, Portugal won the second place. European World Cup quota allocation scheme, one * * * has 13 seats! 55 teams compete for this 13 opportunity! 10 team appears first, and the other three places need to be produced in the play-offs.

The teams participating in the play-offs are composed of the second place in the 10 group and two champions of the Europa League (the two teams whose best results can't directly qualify for the Europa League).