Former Chelsea full-back Mario Melchiot has heaped praise on Nigeria international Victor Moses after an impressive start to the campaign under Antonio Conte.
The winger has found a new lease on life at Stamford Bridge this season, having been deployed in a new role in Conte's 3-4-3 formation.
Moses has been deployed as a full-back to great effect, playing a key role in the London club's recent resurgence.
And Melchiot, who represented Chelsea for five years, says he has been impressed by how quickly and seamlessly Moses has transitioned into his new role.
In a post published on his personal website, Melchiot wrote: "Victor Moses might be the big headline of them all.
"I played with Victor when he was at Wigan. [Roberto] Martinez was very impressed by his talent and we once talked about how we couldn't believe no big club could see it.
"I do have to say he sometimes had to learn to be more focused, not just in the games but in training. He was only 20 years old back then, and I think that's something every young star has to deal with when they break through.
"You have to learn to separate the jokes from work because when you hit the pitch, whether in a game or training, it means business.
"It didn't take long before Chelsea saw Victor's qualities and snapped him up. Then there was a long loan out process at a number of clubs until Conte came and changed the system.
"He put Victor in a role where he had way more responsibility than he was used to. In the [Manchester] United game I saw Victor in his own box more then I've seen him ever in a game. Back-tracking and winning balls and headers like he was a defender.
"Wing-back isn't an easy position to play, of course it asks for a lot of fitness, but also intelligence because you need to be on time, helping out the defence, but when the team goes forward you need to be there to give them the outside option and even take people on to deliver a cross into the box."