Luis Suarez could earn £40million playing for Barcelona - but only if he agrees to a special 'bite clause'.

The Spanish side are offering the Liverpool striker a five-year deal worth £160,000 a week to move to the Nou Camp.

But Barcelona chiefs are insisting that the contract contains special clauses to ensure that he behaves well both on and off the pitch.

Suarez has already been banned by FIFA for fourth months after his World Cup shame which saw him bite Italy defender Georgio Chiellini . It is the third time he has bitten an opponent in his career.

Barcelona are anxious to ensure that he behaves well - and also recognise they will need to appease some of their supporters.