PSG president Nasser Al-Khelaifi has thrown down the gauntlet to Manchester United over their pursuit of Cristiano Ronaldo.

Despite the emotional pull of a return to Old Trafford, Al-Khelaifi says he has the spending power to prise the Portuguese away from Real Madrid.

"I know he has two years left on his contract with Real Madrid," Al-Khelaifi told AS.

"But I have a very good relationship with Florentino [Perez].

"If I want my dream of signing Cristiano to be met, I'll call [Perez]."