Barcelona have “strongly” denied claims made by Spanish daily Sport on Saturday that they have reached an agreement to sign Antoine Griezmann from Atletico Madrid at the end of the season. “The Atletico Madrid forward has agreed to join Barcelona and will be under (coach) Ernesto Valverde’s orders next season,” Sport said, adding that Griezmann’s current buy-out clause of 200 million euros ($240 million) drops by half on July 1.