Romelu Lukaku has lauded Chelsea captain Cesar Azpilicueta and revealed messages were exchanged during his quarantine period.

The 28-year-old completed his return to Chelsea last Thursday for a club-record £97.5 million fee from Inter Milan, signing a five-year contract worth in excess of £200,000-a-week. 

Lukaku was introduced to the Chelsea at their open training session at Stamford Bridge on Wednesday ahead of his expected debut on Sunday against London rivals Arsenal. 

He will wear the no.9 shirt, confirmed by himself and then shortly followed by the club. 

"Can I say it? Yeah. I got the number nine. I’m very happy and fortunate to be in this situation."