Chelsea have completed the signing of Molde striker David Datro Fofana on a six-year deal, the club announced on Saturday.
Fofana, 20, joins Chelsea for a reported fee of £10.93 million ($13.15m) and becomes the latest January arrival at Stamford Bridge after Monaco defender Benoit Badiashile and Brazilian teenager Andrey Santos.
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He has contributed 15 goals and five assists in 24 matches this season for Molde in the Eliteserien, the top flight of Norwegian football.
Fofana said in a statement: "Hello dear fans, I'm here, I've arrived well and I'm very happy to sign for the club of my dreams. I'll see you soon on the pitch, cheers!'
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He has two international caps for Ivory Coast, with his debut coming in a 4-0 friendly win against Burundi in November.
Chelsea, who have struggled in front of goal this season, suffered a 1-0 defeat to Manchester City in the Premier League on Thursday, and face another fixture against Pep Guardiola's side in the FA Cup on Sunday.