Barcelona president Josep Maria Bartomeu has called for spending caps in the transfer market.

Bartomeu says Liverpool's asking price for Philippe Coutinho was just unrealistic.

"I will not say how much we offered," he responded when asked about their pursuit of Philippe Coutinho this summer.

"Liverpool asked for 200 million, but we were not going to give 200 or 150m.

"Clubs have to respect the rules and I am happy that PSG are being investigated, it is in the interest of European clubs."