Chelsea are monitoring a trio of Benfica youngsters according to reports.
Blues sporting director Frank Arnesen recently watched the trio play in the Europa League for the Portuguese club and said they were all being considered.
Arnesen said: "We are always looking for good players."
21-year old Argentine midfielder Angel Di Maria, 22-year old Brazilian defender David Luiz and 21-year old Portugal winger Fabio Coentrao are the players being watched by Chelsea.