#3 Richarlison (Watford)
The young Brazilian has been rated at £40 million. Many clubs, including Paris Saint-Germain and Arsenal are rumoured to be interested to sign the pacy 20-year-old winger.
At the beginning of his Watford career, he scored five goals in 13 appearances. Although he has not been scoring recently, Richarlison is still a dangerous player.
Looking at his current dip in form, the winger may not be able to live up to his price tag. However, if Chelsea is keen to invest in the teenager, the Blues can possibly bargain a little and get a good price for the talented Brazilian.
Richarlison is good with the ball at his feet and can potentially adapt to the team at once with international team-mates like Willian and David Luiz around.