Moussa Wague has put pen to paper on a five-year deal at the Camp Nou.
The Senegalese full-back has completed the move to Barcelona from KAS Eupen in a deal worth around €5m.
He has signed a five-year deal at the Camp Nou till 2023.
Barcelona have set the 19-year old left-back release clause at €100m and plan to deploy his services in the Barca B team.
Wague will also be in contention for a place in the senior team, behind Sergi Roberto and Nelson Semedo in the pecking order.
The idea is to slowly integrate Wague into the first-team where he will serve as backup to Nelson Semedo in the right-back position while Roberto returns to his preferred central midfield position.
Wague completed his Barcelona medicals on Friday and all paperwork have been finalised. The La Liga outfit have also inserted a €100m release clause in the player’s contract.
The 19-year old full-back becomes Ernesto Valverde’s fifth signing this summer following the additions of Arthur Melo, Lenglet, Malcom and Arturo Vidal.
The Aspire Academy product made a name for himself at the World Cup in Russia becoming the youngest African player to ever score a goal at the World Cup.
Wague joined KAS Eupen in 2017 making 23 appearances for the senior team.
He has featured thirteen times for the Senegal national team his only goal coming in the 2-2 draw against Japan at the World Cup.