Sources close to the agents industry have informed CaughtOffside that Barcelona are monitoring William Saliba, with Real Madrid and Paris Saint-Germain also reported to be monitoring the situation. Arsenal's position is that the French centre-back is not for sale unless an extraordinary offer of approximately €150m is made. A transfer of that size would be very difficult for Barcelona, as the club has had to manage its wage structure carefully, while Real Madrid and PSG may possess greater financial flexibility.