Christian Pulisic
In January 2019, Pulisic was transferred to Chelsea that costed $73 million (£57.6 million) making him the most expensive North American player of all time. He began playing for the club in the 2019–20 season. He became the youngest Chelsea player to score a hat-trick, at 21 years old.With Chelsea, he won the 2020–21 UEFA Champions League, 2021 UEFA Super Cup and 2021 FIFA Club World Cup, becoming the youngest Chelsea player and first American to score in the Champions League semi-finals and the first American to play in the Champions League final.