France international forward Griezmann is reported to be a target for both Barcelona and Man United, but the Mirror says Atletico "are refusing to let him go without a fight."

Despite having given him a new contract last summer, they will do the same again to fight off Barca, who plan to "go big to try and sign him as the centrepiece of their rebuilding."

The report says coach Diego Simeone, who has pledged his future to Atleti, is thought to have been told they will do everything possible to keep Griezmann -- but it adds that Barca are "desperate to get their main target."