Chelsea confirmed the signing of Porto winger Christian Atsu yesterday.
Atsu has joined the Blues on a five-year-contract for a reported £3.5million fee and is loaned out to Vitesse Arnhem for the rest of the season.
The Ghana international is a left-sided player who can play as a winger or second striker.
Atsu joined Porto in January 2010 from Cheetah FC and finished the season with the club's Youth Player of the Season award.
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