French club Lille says it has signed Ivory Coast forward Salomon Kalou from European Cup winner Chelsea on a four-year deal.

The 26-year-old Kalou was available on a free transfer after seeing out the final year of his contract with the Premier League club.

Kalou scored 36 league goals in 156 league games for Chelsea. He was not a regular on the field with the London club, and was used more as a wide player when he did feature.

Lille is strengthening following the departure of French player of the Year Eden Hazard, who joined Chelsea.

Lille recently signed France midfielder Marvin Martin from Sochaux.

The club won the French league and Cup double two years ago.