Neymar returning to Barcelona would be "incredible", though former star Xavi insisted a transfer to re-sign the Paris Saint-Germain forward would be "very difficult".
LaLiga champions Barca have been linked to Neymar, who left Camp Nou for French giants PSG in a world-record €222million deal in 2017.
PSG sporting director Leonardo confirmed Neymar – who failed to turn up to the first day of pre-season training – is available for the right price.
Xavi played alongside Neymar before moving to Qatari side Al Sadd in 2015 and the 39-year-old told Movistar: "He would be an incredible signing.
"But I see it as being difficult, honestly. I think it's very difficult.
"We have seen so many things that I thought I'd never see though, such as PSG paying €222 million, so we'll have to wait.
"There's no doubt that he's one of the best players in the world, but let's see what Barcelona do."
#OnThisDay in 2014
— FC Barcelona (@FCBarcelona) July 11, 2019
@luissuarez9 was presented as a Barça player
games
goals pic.twitter.com/FhdmHUlh8t
While Neymar's future is uncertain, Atletico Madrid star Antoine Griezmann is reportedly set to join Barca.
France international and World Cup winner Griezmann – who has a €120million release clause – will leave Atletico after five years and Barca are favourites to sign the forward.
"He's a great player, a world star," Xavi added. "He made a difference with Atletico Madrid and with France. He's an extraordinary player.
"It's still not official, but it seems like he's going to Barcelona. I think it'll be a great signing."