Maurizio Sarri will wait until Thibaut Courtois and Eden Hazard return from their post-World Cup holidays before holding talks about their future with Chelsea.

Real Madrid are in talks with Chelsea over a possible £35 million transfer for Courtois. Real Madrid also has interest in buying Hazard to replace Cristiano Ronaldo.

“Clearly the players you are referring to are very high-level players and I would like to keep them,” Sarri said during his unveiling at Stamford Bridge on Wednesday. “But a telephone call without looking them in the eye will not give me any certainty.

“I would like to meet these players face to face and talk to them and understand what the best thing is for everyone to do. Before that I would also like a player to come on the pitch for four or five days with me to have a clear idea of what the plan is.”

Hazard suggested he would like to leave Chelsea.

“He is one of the top two or three European players,” Sarri said of Hazard. “I hope that I will manage to improve him but this is very difficult given he has reached a very high level.”