Sage has had a successful stint at Lens, leading the team to a second-place finish in Ligue 1 and a French Cup title. His tactical expertise has been a key factor in Lens's success, and he is now being eyed by several Premier League clubs, including Crystal Palace.

Sage still has two years left on his contract, which could make him an attractive option for Crystal Palace. The club is looking for a manager who can build on their recent success and take them to the next level.