Barcelona president Joan Laporta says more signings will soon be arriving.
Memphis Depay was confirmed on Sunday, as he joined Eric Garcia, Sergio Aguero and Emerson Royal as new Barca additions.
"There will be three or four more signings," Laporta stated.
"If we want football to be more attractive and sustainable, we have to go down this route [with the European Super League]."
One of Laporta's main goals has been to get Lionel Messi to sign a new contract, but he is still awaiting a response from the Argentina star.
"I would like Messi to say yes as soon as possible, it would help us in every way," he said.
"We are in communication, day in and day out. He's excited and I'm grateful for the desire he's showing to stay."
