Lionel Messi and Barcelona must agree amicable split if divorce is coming - Kaka

Kaka believes Lionel Messi could leave Barcelona and warned it is important there is no messy divorce if the Argentina star moves on from Camp Nou.

Six-time Ballon d'Or winner Messi was incensed by recent comments from sporting director Eric Abidal, who questioned whether some players showed full commitment under former head coach Ernesto Valverde.

A scathing response from Messi bypassed official club channels as he took Abidal to task on Instagram, and that raised the question of whether the record-breaking forward remains happy at Barcelona.

He has spent his entire professional career with the Catalan giants and is by a long distance their all-time leading goalscorer and closing in on Xavi's appearances records.

Yet Kaka, who starred for Milan, Real Madrid and Brazil and also won the 2007 Ballon d'Or, says the day could come when Messi seeks to move on.

It would then behove both parties to ensure the split is conducted in a dignified way, Kaka explained.

Messi has a clause in his contract that allows him to leave on a free transfer at the end of each season.

"I think it's not going to be a problem for him to play in the Premier League, or [to play] at a top club at the top three leagues in the world would be good for him," Kaka told Sky Sports News.

"But of course it depends on what he wants for his career. It's hard to see him playing for another club, but it's just ... [he may feel,] 'It's okay, it's time for me to change and I'll go to have another experience and I'll be the best football player in the world for another team.'

"I think the most important thing is not the broken part but the way this is going to be broken.

"When [Cristiano] Ronaldo left Madrid we were sad that Ronaldo left the club and of course a lot of them regret Ronaldo's left Real Madrid.

"But I think everybody at the time understood that, okay, for him it's another challenge, he needs another challenge, he needs to move, it's okay, we are one of the best clubs in the world and we'll keep going, Real Madrid needs to rebuild.

Kaka is hoping to move into a football director's role and explained he was fascinated by the Messi saga.

"I'm in this position right now to understand the clubs, the sports director, how to manage a club, how to build a team, and it's a very good situation for me to understand how they're going to handle this, because right now everything's so hot," Kaka said.

"We're going to hear a lot about that, but I'm looking forward to seeing the next step - Messi, [whether] he's going to leave, Abidal, or the club, Barcelona, how they're going to manage this situation will be really nice.

"From outside it's really hard to say something. I don't know if Messi wants to leave or he just wants to protect his players - [and is thinking,] 'As a captain I need to protect my team.'"