David Luiz has completed his move to Arsenal from Chelsea in a deal worth £8 million.
The defender trained separately from Chelsea's first team on Wednesday after reportedly becoming a disruptive influence at training.
The Brazilian had been trying to push through a move to the Gunners, after spending three seasons with the club, in his second spell with the Blues.
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The 32-year-old signed a new two-year contract with Frank Lampard’s side in May, but Arsenal’s search for a central defender, following the sale of captain Laurent Koscielny to Bordeaux, led them to their London neighbours.
Luiz made 248 appearances in his two spells with Chelsea and becomes Arsenal’s fifth signing of the summer transfer window.
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