Serge Gnabry's refusal to sign a new contract with Bayern Munich is thought to be about to instigate a transfer tug of war between two of Europe's biggest clubs.
The German international, who has won every trophy there is to win with the Bavarian giants, is said to be one of a number of Bayern Munich players currently unhappy at the club.
Bayern Munich's salary offers are said to have upset a number of players, including Gnabry himself.
According to German publication Bild, Bayern Munich are not averse to selling the player this summer to command a transfer fee and so as to avoid Gnabry leaving for nothing next summer.