PSG have been warned not to underestimate improving Champions League opponents Manchester United.

The two giants meet in the round of 16 next month and French pundit Daniel Riolo is worried about United's revival.

He told RMC: "This PSG if it does not qualify against Manchester, I'm not saying that it will necessarily happen but it would be in my eyes, anyway, really a big disappointment.

"In a European Cup match, at home, they will put pressure on you, obviously they will try to do something. (Nemanja) Matic I saw better than he is there, (Ander) Herrera the same.

"They're going to have two, three big games before then (facing PSG)."