Arsenal have confirmed the signing of Gabriel Magalhaes from Lille.
The defender arrives in a £25 million ($33 million) deal and has signed a five-year contract with the Gunners.
He becomes the club's second signing of the transfer window, following the capture of fellow Brazilian Willian - who joined on a free transfer from Chelsea.
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Speaking about the signing, Arsenal's technical director Edu said: "We are delighted to have signed Gabriel.