A tearful Lionel Messi confirmed Sunday he is leaving Barcelona after 17 trophy-laden years, with Paris Saint Germain his likely next port of call for a career swansong.

"I have still not come to terms with the reality of leaving this club now -- I love this club," said a suited Messi, who several times wiped away tears before a squadron of reporters at the club's Camp Nou ground who gave him a standing ovation.

Messi, widely considered the most gifted player in the history of the game, has won 35 trophies at the club which he joined as a 13-year-old -- including four Champions Leagues and 10 league titles while his 672 goals are a record for any of the top five European leagues.

Barcelona president Joan Laporta said the club's debts were "abominable"
Barcelona president Joan Laporta said the club's debts were "abominable" AFP / Pau BARRENA

Despite offering to cut his salary by half to seal a new five-year deal which a club carrying debts of 1.2 billion euros ($1.5 billion) and player had agreed on, the agreement foundered on strict Spanish League salary restrictions.

Barca president Joan Laporta said he could not "mortgage" the club's future on any player -- not even 34-year-old Messi.

Previously Messi had been earning over 70 million euros ($82.3m) a year net -- but financial observers of the Spanish game estimate he pulled in around twice as much in commercial revenue, accounting for almost one-third of total incomings and eight in ten shirt sales.

Changing faces: This combination of file pictures shows Lionel Messi at different stages of his Barcelona career
Changing faces: This combination of file pictures shows Lionel Messi at different stages of his Barcelona career AFP / Lluis GENE

Messi tried to engineer his departure last year, fed up with some underwhelming recent Champions League showings.

But he stayed and stressed on Sunday that he and his family had wanted to continue in Catalonia rather than embark on a likely reunion with former clubmate Neymar at PSG -- ostensibly the only club that can afford him with Manchester City having already said they will not make a move for his services.

"I would've liked to have won another Champions League," said Messi.

Lionel Messi is leaving Barcelona, club president Joan Laporta said in a press conference on Friday.
Lionel Messi is leaving Barcelona, club president Joan Laporta said in a press conference on Friday. AFP / LLUIS GENE

"I don't regret anything, I tried to give my best and I'm ending my career here with a good number of titles".

He also said he had been completely transparent throughout the saga regarding his intentions.

"I gave everything for this club from the first day that I arrived right to the last. I never imagined having to say goodbye.

Messi was overwhelmed as he confirmed he is leaving Barcelona after 672 goals in 788 games and mouintains of trophies
Messi was overwhelmed as he confirmed he is leaving Barcelona after 672 goals in 788 games and mouintains of trophies AFP / Pau BARRENA

"I'm not ready for this," he said, again choking back tears as thousands of fans waited outside to salute their icon, whose first contract 21 years ago was signed on the back of a restaurant napkin for want of anything else to seal the deal on.

Stressing no deals had been done, Messi did concede that joining PSG was a "possibility" as the Qatar-owned club consider a move.

A tearful Lionel Messi tells a press conference in Barcelona that joining French giants Paris Saint-Germain is a 'possibility'
A tearful Lionel Messi tells a press conference in Barcelona that joining French giants Paris Saint-Germain is a 'possibility' AFPTV / Adrian ADDISON

On Sunday evening, dozens of PSG fans gathered outside the gates of Le Bourget airport to the north of Paris hoping to catch a glimpse of his arrival.

After Messi's emotional conference there was little immediate reaction from Barcelona with fans and players alike still drinking in the news of the reality of his departure.

Barca's Dutch coach Roland Koeman, whose goal won Barca their first European Cup in 1992, tweeted Saturday it was "still hard to understand that you will not play for @FCBarcelona anymore," while saluting Messi's "work ethic and desire to win."

Former Barcelona teammate Cesc Fabregas also posted a warm tribute.

"You leave as the best player of all time. It will never be the same to see Barca without you. Thank you, thank you and thank you for everything you have given," he tweeted.

Now it falls ostensibly to PSG to add the final piece to their multi-million jigsaw as the capital club seek to land an elusive maiden Champions League crown.

They have already added veteran Spanish defender Sergio Ramos from Real Madrid, where he won four Champions League crowns of his own as well as Italy goalkeeper Gianluigi Donnarumma -- likewise on a free transfer.

Messi -- who would likewise not command a transfer fee, being out of contract, would be the cherry on the cake and happy to meet up again with former Barca clubmate, Brazil superstar Neymar -- who has long made no secret of wanting a reunion.

Messi would also team up with his Argentina colleague Angel di Maria as well as Kylian Mbappe, the 22-year-old tipped to succeed him as the best player in the world.

An added attraction at the Parc des Perinces is that Pochettino, like Messi, started his career at Newell's Old Boys in Rosario, Argentina.

Pochettino was actually on the pitch playing for Espanyol when a teenage Messi made his Barca debut.

As PSG mull their move fans and media alike are counting down to what many see as inevitable, now Messi has cut the Catalan cord.

Sports daily L'Equipe reported Messi would receive a three-year "record contract" with various reports saying he stands to earn 35 million euros a season.

"For me, it'd be great to see Messi in our league," said Lille skipper Jose Fonte on Sunday.

However, he added with a smile: "I have already spoken with Cristiano Ronaldo to come to Lille so that there is Messi-Ronaldo duel!"