Pique said in a press conference: 'I want him (Coutinho) to stay, but at the end of the day it's what he wants and I want him to be happy.
"He's a top quality player, the way he breaks from deep-lying midfield positions, his shooting ability - it's a mystery why it hasn't gone well for him at Barcelona".
Coutinho's time at Barcelona has not gone to plan, while Liverpool achieved an incredible points tally of 97 last season and lifted their sixth European trophy.
The report claims that the Catalan club are likely to charge about £21 million to complete the loan deal.
So if United manage to seal his signature, it is thought that Spurs will swoop for Coutinho on loan, with an option to buy.
On the pitch, it's fair to say that Liverpool have moved on from the Brazilian. Combine that with reaching the feel-good factor of reaching Champions League Final and a first full season at their new home, this could be a season to remember for the north London side.
The Brazilian playmaker has become surplus to requirements at Camp Nou and has previously been linked with Manchester United and Liverpool.
L'Equipe had reported that Arsenal were in the race, but the Gunners themselves denied those claims.
Arsenal lost 2-1 to Barcelona on Sunday, when head coach Unai Emery seemed to be unaware - or unwilling to share - that a deal for Coutinho was impending, "We've never talked about Coutinho".
Lo Celso has only recently made his move to Betis permanent after spending the 2018/19 campaign on loan at the Spanish side from Paris Saint-Germain and his current deal at the Estadio Benito Villamarín runs until 2023. We'll see if he plays a few minutes on Saturday.