After making 254 appearances for Chelsea, former Chelsea star Salomon Kalou left Chelsea at the end of the 2011/2012 season, just as the Blues won the Champions League.
The Ivory Coast international won seven major trophies during his six years at Stamford Bridge, and he has revealed the reasons for his Chelsea exit.
Kalou, 31, told Sky Sports: “After six years I think it was the right moment to go.
“Chelsea was the most successful part of my career but it was important for me to move on to go and achieve what I did.”
He left Chelsea for Lille in 2012, and is still playing at the top, as he’s currently with Hertha Berlin in Germany, who are in the title race.
He said: “My time in France and Germany showed there’s a different way of playing football, a different way of learning culture, about France, about how people love football.
“For me, that’s something I enjoy.
“Here the tempo is more calm. They wait for the right moment to attack, to score, to control the game.
“The training is more heightened. Sometimes we’re training three times a day.
“I understand when I come to train, you can’t bring the same intensity that you have in England.
“In England, the training is more short. Everything is focused on the game and you give 200 per cent.
“Those are the different style of training and football. It’s very interesting to learn both.”