Eden Hazard insists Claude Puel is up there with the best managers in the game and has credited him with a hand in making the attacker the player he is today.
Southampton boss Puel is reportedly under threat of the sack in the close season, with The Independent claiming the Saints have sounded out Hull manager Marco Silva as a potential successor.
Puel's Saints beat Middlesbrough 2-1 on Saturday to lift themselves back into the Premier League's top half with a game to go, and title winner Hazard puts the Frenchman in the same bracket as Antonio Conte, Jose Mourinho and Roberto Martinez.
"Conte is on the top but [Belgium boss] Roberto is also on the top, but I worked with him just for one year," Hazard told Sky Sports News HQ.
"Mourinho is also on the top. He's a great manager. I try to learn from all managers. I don't like to say one is good or one is bad. All can teach me a lot.
"I even spent two months with Claude Puel in Lille. He is one of the top also, because he maybe made me this player I am now. I like to work with different managers."
Hazard, who has scored 16 goals in 40 appearances for the champions this season, has also hailed Conte's hands-on approach this season as the Blues lifted a second Premier League trophy in three years.
He said: "It's more Conte [than anyone else]. He does maybe everything. He is talking a lot with the players, even though English is his second language. He has his own philosophy and tactics."