The pair played together at Lille before Gervinho left for Arsenal in a £10.8m deal.
Hazard followed him to the Premier League a year later to join Chelsea for £32m.
Asked the most talented player he's played with, the Belgium star told Sport magazine: “Samuel Eto’o – he’s one of the best players in the world. Obviously here Frank Lampard, JT [John Terry], with the respect they create and what they’ve gone through.
"And, in France, Gervinho – his skills with the ball are insane."
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