Chelsea are rivaling Manchester United for Udinese sensational Alexis Sanchez. Milan sources say Chelsea have registered their interest in Sanchez's minders this week.
The Chile World Cup star is in outstanding form in Serie A and has also been targeted by Manchester United and Inter Milan.
Udinese president Giampaolo Pazzo has previously said Sanchez, will not be sold before the summer.
The 22-year-old has a £17m buy-out clause in his contract.