Nice coach Patrick Vieira is digging in his heels over Algerian sensation Youcef Atal.

The free-scoring fullback is a top target for Chelsea, along with several major clubs across Europe ahead of the summer market.

But Vieira said: "The question is to know what will happen if there is an offer?

"The answer is that we will not sell and Youcef Attal will be here next year!"

Atal struck a superb hat-trick from right-back for OGCN against Guingamp last week.