Barcelona's move for Antoine Griezmann could have far reaching implications.
The World Cup winner announced he would leave Atletico Madrid this summer, with Barca favourites for his signature.
That leaves Atleti potentially cashed up and in need of a replacement.
The 27-year-old has scored 19 goals in all competitions so far this season.
Despite Atleti's interest, the Gunners are determined to keep their star man and have planned talks over a new contract.