Chelsea have signed Nantes defender Papy Djilobodji for a reported £4 million ($6.1m).
The Blues have conceded nine goals in their opening four Premier League games and have responded by signing the centre-back on a four-year deal.
A statement on Nantes website said: "As with Jordan Veretout, Djilobodji joins the Premier League and the ranks of the champions. Nantes extend their congratulations and wish him well for the rest of his career."
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Djilobodji, 26, joined Nantes from Moissy-Cramayel in 2009 before going on to make 171 league appearances for the club in Ligue 1 and 2 and scoring nine goals.
The Senegal international could make his Chelsea debut against Everton at Goodison Park on September 12 after the international break.
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