Chelsea have reportedly had an approach for Leon Bailey turned down by Bayer Leverkusen, who are said to be determined to keep hold of the 20-year-old.
Antonio Conte's side were willing to offer £22 million for the youngster, but have failed with an initial approach, according to Simon Jones at the MailOnline.
The Jamaican is seen as the perfect replacement for Willian and also able to provide cover for Eden Hazard.
The reigning Premier League champions sent scouts to watch Bailey in action in Leverkusen's 2-0 win over Stuttgart on Friday.