Barcelona have stepped up negotiations with Atletico Madrid attacker Antoine Griezmann this week.

Barca are favourites to sign the France attacker - should he choose to leave - and are prepared to meet the €100m buyout clause in his contract.

Catalunya Radio says talks intensified this week with Griezmann's sister visiting Barcelona and meeting with club officials to discuss personal terms.

Barca are offering Griezmann a bumper five-year contract, which the player is satisfied with.

Thanks to his buyout clause, there'll no need for contact between the clubs, with Barca required to only pay the €100m to ferry Griezmann away from Madrid.