Barcelona made numerous bids for Coutinho in the summer window as they looked to replace Neymar, who left for Paris St-Germain in a £200m deal.
The Catalan giants are said to have offered over £120m to land the Brazilian playmaker, but Liverpool stood firm and rejected any approach.
But Balague claims Barcelona will now look to bring the 26-year-old to the Nou Camp with a reduced £71m bid when the transfer window reopens in January.
Balague told Sky Sports: “If you ask most people they will agree it doesn't make much sense for Liverpool to sell Coutinho in January but Barcelona will still try.
“They will put about €80m (£71m) on the table and will look to test Liverpool's resolve.
“Barca feel the conditions are still there for the player to leave - they think he will still be very useful to them considering the departure of Neymar as he has not been replaced.
“Remember Barca did not want Coutinho until they started to use him as a way to keep Neymar from PSG. Once Neymar left they realised he could fill that gap anyway.
“This transfer now enters the phase of wait and see what happens in January.
“Barca will bid €80m, it's just for Liverpool to decide. Has their resolve softened? Or will they stay strong again like the summer?”
