Hazard has stepped up his efforts in training in recent months, thanks to the demands of Mourinho and Eto'o.
"He must do more, he can become a great player by winning the big matches," stated Eto'o.
Hazard said: "I think I understand what is required of me. I need to score more.
"Mourinho has the paternal side. What he says, it is often smart things."
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