Chelsea defender Kalidou Koulibaly as hailed the quality of the squad that has been assembled this season.
The Senegal international has been part of a 600m-plus spend by Chelsea's new owners.
He told Goal: "Everyone is talented.
"But Mykhailo (Mudryk) ... I have followed him for a long time, because we had contact on Instagram, so I already knew him a little before. He's really, really good at training. Quick, good with the ball...
"Flix too. Everyone knows about him. When they have the ball at their feet, it's like magic.
"It's good for us."