Arsenal manager Unai Emery has been warned about the imminent signing of David Luiz from Premier League rivals Chelsea.
The Arsenal boss was sounded a note of caution by club legend Martin Keown via the Daily Mail.
According to the former Arsenal centre back, David Luiz might be exposed at the club by the Gunners midfield though he was quick to point out that his passing style will benefit the North Londoners.
Arsenal have agreed to a deal to sign David Luiz according to trusted BBC journalist David Ornstein.
The Gunners will pay £8m for his services and the Brazilian international star is expected to sign a two-year contract until the end of the 2020/21 season.
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The 32-year-old will be a direct replacement for ex-Gunners skipper Laurent Koscielny who left the club in a controversial manner.
Koscielny left Arsenal for French Ligue 1 club Bordeaux on Tuesday.
Arsenal manager Unai Emery wanted him to stay at the club for the remainder of his contract but the French defender was adamant that he wants to return to France after nine years in North London.
Laurent Koscielny left French club Lorient to join Arsenal in 2010 and he went on to become a key player for the Gunners before his exit.
