Lille attacker Salomon Kalou is delighted for Chelsea over the return of Jose Mourinho.
Mourinho originally signed Kalou for Chelsea from Feyenoord.
He said: "Jose is still the right man for that club.
"He brings stability wherever he goes, and Chelsea need that more than anything.
"You have the players and experience to win trophies, but you need someone who can direct everything, and when he is there everyone will listen.
"He is a leader. He brought the stability they needed when they won their first trophies with him in 2004.
"I think he is a winner and will bring that back to the club again. The club has won every trophy but you need that stability to bring through a new generation of winning trophies."