Jamie Gittens has officially signed for Chelsea.

Chelsea have now confirmed the signing of winger Jamie Gittens from Borussia Dortmund. 

A deal to sign Gittens was struck late last month, and Dortmund revealed on Thursday that the young winger was on the cusp of signing for Chelsea, who are reported to have paid an initial £48.5 million ($66.2 million) with a further £3.5 million ($4.8 million) in add-ons.

Before his arrival was even confirmed, Gittens was seen celebrating Chelsea’s Club World Cup triumph over Palmeiras on the pitch with the rest of Enzo Maresca’s squad, dressed in full club gear for good measure.