Leicester boss Claude Puel has questioned whether Eden Hazard would need to leave Chelsea to become the best player in the world.
The Foxes chief gave Hazard his professional debut when he was a 16-year-old at Lille in 2007.
Hazard has starred for Chelsea since moving from Lille in 2012, winning the Premier League twice, and has been linked with a move to Real Madrid.
The Belgium international has said he is ready to sign a new deal at Stamford Bridge.