USA international Christian Pulisic has paid tribute to Borussia Dortmund after it was confirmed he is to leave the club for Chelsea.
The 20-year-old has moved to Stamford Bridge in a deal worth in a deal worth £58 million (€64m/$73m) but will be loaned back to Dortmund for the rest of the season.
In an emotional letter posted on social media, Pulisic said: "It is with a heavy heart that I announce that I will be entering my final months at (y)our world-famous club.
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"It feels like only yesterday that I arrived in Dortmund as a raw, excited, very nervous but exceptionally proud 16-year-old from a small American town called Hershey.