And Neymar has been quick to begin repaying that, having a hand in 21 goals in his first 14 games for the French giants, who sit top of Ligue 1 and their Champions League group after a blistering start to the season.
Neymar's PSG career has not been all plain sailing to date, with rumours of rifts between him and striking partner Edinson Cavani, as well as coach Unai Emery.
All parties have been swift to play down such talk, but it has not stopped suggestions emerging that Madrid could make a stunning swoop for the star striker.
However, when Neymar was asked about the reports after his two-goal show in PSG's 7-1 destruction of Celtic on Wednesday, he was less than impressed.
"For f***'s sake," he is widely quoted as saying. "Have you got nothing else to talk about?"