The deal is for a reported $10 million.
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Luiz instantly strengthens Arsenal’s back line, and brings a respected trophy case which includes a Premier League title, a Champions League title, two Ligue 1 crowns, and two Europa League crowns.
The 32-year-old defender chewed up minutes for the Blues last season, playing over 4,000, and was the club’s third-best rated player in Premier League play (WhoScored.com).
But Frank Lampard has a good batch of center backs in the fold, including a player who did very well on loan last season: Kurt Zouma. Also amongst Chelsea’s center backs options are Antonio Rudiger, Andreas Christensen, and Canadian-born Fikayo Tomori (who was on loan at Derby County under Lampard last season).
The deal is mutually beneficial, much like the Cech move.