Updated: Jun 1
Chelsea players - including Eden Hazard and Willian - got "bored" under Maurizio Sarri.
Sarri won the Europa League with Chelsea last season.
Gianfranco Zola has revealed Chelsea players got 'bored' under former boss Maurizio Sarri.
Sarri was named as Antonio Conte's successor back in 2018 and had a good start to his career in the English top flight before things turned around during the midseason.
The Italian managed the Blues for only one season before he left to take over the reigns at Serie A club Juventus.
"At the beginning, the players were very much behind everything that we were saying, they were brilliant," Zola told beIN SPORTS.
"They were following everything, but then as the weeks passed due to the repetition and the amount of games they were playing, the players got tired and they also got bored in a way.
"But boring is part of our job. Sometimes you need to get bored but when you get bored you persist in what you're doing and you get better.
"I remember that when I was learning to play football, kicking a ball for example, I used to do it 300-400 times a day at least.
"There were moments when I got tired but I needed to do it repeatedly because if I wanted it to become a part of me, this was the process I needed to go through."
The former Chelsea forward Zola added: "They were talented players, like Hazard and Willian, players who know how to win games on their own, but they were suffering from the type of exercises and type of training we were doing - but it was necessary for the others.
"I'll be honest, they were brilliant because they got bored, but they kept doing it throughout and that was the reason why when everyone was dropping we were going up towards the end."
Sarri led the west London club to Europa League glory last year, beating north London side Arsenal in the final.