Chelsea have taken the last spot among the seeded teams for the 2021/2022 Champions League group-stage draw.
This follows their 1-0 win over Manchester City in this season's final on Saturday.
Kai Havertz's 42nd minute goal proved to be the difference in Porto and saw the Blues secure their place alongside the champions of Europe's top six leagues in Pot 1 for the draw on August 26.
Villarreal will also be seeded after defeating Manchester United 11-10 on penalties in the Europa League final on Wednesday.
Pots 2-4 are built based on UEFA's five-year coefficient score.
Pot 1 (confirmed)
Pot 2 (confirmed)
Pot 3 (provisional)
Zenit St Petersburg
*Must come through the qualifying rounds
AC Milan, Club Brugge and VfL Wolfsburg have qualified automatically and face being in Pot 4 unless higher-ranked teams are knocked out in qualifying.