Messi's future at the Camp Nou has been up in the air all throughout last season, and the 8-2 Champions League thrashing by Bayern Munich stoked the flames even more. The 33-year-old reportedly told Koeman that he is unsure if his future lies at Barcelona and that he has 'no trust' in president Josep Maria Bartomeu.
Now, according to Spanish news outlet Sport, PSG, Inter and Juventus are prepared to make offers for the 33-year-old this summer in what would surely be a world-record deal.
The report says each club has enough pulling power to attract Messi's high-profile signature should he decide to move away from Barcelona.
Inter have been linked with Messi since years and they are 'best poised' to sign the Argentinian as footballers pay less tax in Italy, while the Serie A club could also use reported Barcelona target, Lautaro Martinez, as makeweight in a potential offer.
PSG made the shock move for ex-Barcelona man Neymar back in 2017, with the Brazilian moving to the French capital for £197million. The Ligue 1 club's Qatari owners could pull off another blockbuster deal for the player widely regarded as one of the best players of all time.
Juventus, meanwhile, could create a devastating partnership between Messi and current star man Cristiano Ronaldo. Both Messi and Ronaldo have scored over 1200 career goals between them and could become a nightmare for Serie A defences should they join forces.