Christian Pulisic. Transfer to Chelsea FC

Pulisic moved to Premier League club Chelsea in a transfer worth $73 million (£57.6 million), making him the most expensive North American player of all time.

Pulisic made his Premier League debut for Chelsea in a 4–0 defeat to Manchester United and scored his first goals for Chelsea, completing a 'perfect' hat-trick in a 4–2 away win against Burnley.