Real Madrid would be among the favourites for this season's Champions League if they signed Neymar, according to Gheorghe Hagi.
The Brazil superstar has been linked to the Spanish giants, as well as former club Barcelona, and he was absent as Paris Saint-Germain opened their Ligue 1 title defence with a 3-0 win over Nimes on Sunday.
Madrid are prepared to swoop in with a bid in excess of €100 million (£92m/$112m) for him, though Goal understands Barca could convince PSG to sell with an offer of €50m plus Philippe Coutinho and Nelson Semedo .
PSG's sporting director Leonardo hinted Neymar could be close to leaving the French capital, saying negotiations over his exit were "more advanced" but says no agreement has been made .
Madrid have already signed Eden Hazard from Chelsea during the off-season and Hagi – who played for Los Blancos between 1990 and 1992 – says the addition of Neymar would make them a formidable force in the 2019-20 campaign.
"They can win easier," he told Super Deportivo Radio . "Without a doubt. If they sign Neymar and with the Hazard signing, they can win the Champions League again.
"[Zinedine] Zidane will then have to find a place for each one, but it's the best thing that can happen to a coach. You just have to motivate them."
Neymar has struggled to hit the heights of his time at Barca following his move to France, but Hagi is confident that he would rekindle his best form back in Spain.
"There are times that he is good and sometimes he is not," he added. "The value of the player is the same. He is a player who would do well for all the teams in the world."
Hagi was also drawn on the age-old debate of whether he prefers Lionel Messi or Cristiano Ronaldo, with the 54-year-old opting for the Barca star.
"I would love to be his coach, but I confess that I choose Messi because I have a small weakness for him being left-footed," he explained.
"I was a left-footed footballer myself. I can't choose another one, it's my style."