Arsenal have completed the signing of defender Gabriel Magalhaes from Lille.
The 22-year-old has signed a long-term contract with the Gunners, having helped Lille to a fourth-placed finish in Ligue 1 last season.
"He has many qualities which will make us stronger as a defensive unit and as a team," Arsenal manager Mikel Arteta told the club website.
"He has proved with Lille that he is a defender with many outstanding attributes and we are looking forward to watching him grow as an Arsenal player.”
Gabriel, who signed for Lille in January 2017, joins a defence that has also been bolstered by the return of William Saliba from his loan at St-Etienne.
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He becomes the second Brazilian to sign for Arsenal this summer after Willian arrived on a free transfer.
Technical director Edu said: “We are delighted to have signed Gabriel. He is a player we have been studying for a while and he was in demand from many clubs, so we are proud to have agreed and completed this transfer with Lille and the player.
"Gabriel is a player of high quality and Mikel and his coaches are looking forward to integrating him into the club.”