Chelsea boss Jose Mourinho has hailed the work ethic of Eden Hazard.
Hazard, 23, received a boot up the backside from his manager during the last campaign, much like the one another flair player, Joe Cole, was given during the Portuguese's first spell at the club.
Mourinho said: "Credit for him. He didn't lose his spontaneity, he didn't lose his happiness, he didn't lose his creativity, none of his good qualities, but he won some other qualities.
"Even physically. Look at him, he's a small guy, but he's very strong. He scores with his head now, jumps well, he's strong to hold off contact from opponents.
"We are doing that with him progressively, we didn't try to do it by flicking a switch. It's progressive and a great evolution."