PSG defender David Luiz says Liverpool face a battle to keep hold of Philippe Coutinho.
Luiz says Coutinho will be lured out of Anfield next summer - if Liverpool fail to qualify for the Champions League.
He said: “Coutinho made the choice to stay at Liverpool without Champions League football this season. I don't think he will make that choice again.
“The best need to be playing with the best. Coutinho is the best midfield player in England right now. That is great for him, but when you play at that level the big clubs will notice you.
“If Liverpool don't qualify this season for the Champions League, I am sure he will be the most in demand player in Europe next summer."
Luiz added: “PSG now only sign the best. We have many Brazilians already at the club and I would welcome not just one of the best midfield players in the world, but also my good friend.
“Already Barcelona are interested, but we can expect more clubs than that. Any club would want him."