Barcelona have completed the signing of Jean-Clair Todibo six months earlier than expected, having reached an agreement with Toulouse to accelerate the transfer.
La Liga champions beat Real Madrid to secure Todibo's signature earlier this month and had originally agreed to sign the 19-year-old when his contract expires next summer.
However, Barcelona decided a few days before the transfer deadline that they wanted to fast track the deal, and they are believed to have paid Toulouse a small fee in the region of €2m to do so.
Todibo becomes Barcelona's third purchase of the month following the loan signings of Jeison Murillo from Valencia and Kevin-Prince Boateng from Sassuolo, both of whom could make their moves permanent at the end of the season.