Chelsea manager, Maurizio Sarri, has admitted that Eden Hazard is so good, that he can become bored by training sessions.
Hazard is set to complete another stellar campaign on Wednesday, with the Blues taking on Arsenal in the Europa League final in Baku.
The Belgian has scored 19 goals in all competitions and Wednesday's game could be his last with the Stamford Bridge outfit, as he has continually been linked with a summer move to Real Madrid.
Sarri is hoping Hazard will sta and has again hailed the 28-year-old as one of the world's best.
"He's one of the most important players in Europe, in the world, at the moment.
"I think he can improve. He has to try to become the best in Europe because, for characteristics, he can become the best player in Europe, in the world, I think.
"It's a pleasure during the match. Sometimes during the week it's a problem.
"It's a problem during the week because he's a talent and, during training, sometimes he's bored because, for him, everything is really very easy," Sarri said at a news conference on Tuesday.