Chelsea ace Willian says Eden Hazard's pace is key to his game.
The Brazilian says his Chelsea team-mate is the quickest at the club.
Speaking to FourFourTwo, he said: "You need pace to be a modern winger.
"The fastest player I've faced is Theo Walcott at Arsenal, and Eden Hazard is probably the fastest player at Chelsea.
"In England it's rare to find a slow winger.
"If you are slow, you'll be better off as a midfielder - maybe a No.10.
"You need to be clever and use a change of pace to beat defenders."