Neymar sends message to Lionel Messi to confirm he's going
16:33: Neymar has confirmed he’s joining PSG in a public message to Barcelona star Lionel Messi.
Messi bid Neymar farewell today ahead of his £199million move to the French giants in a moving Instagram video.
The Argentine wrote: "It was an enormous pleasure to have shared all these years with you friend Neymar. I wish you luck in this new stage of your life. I love you."
15:53: Neymar’s adviser Wagner Ribeiro has told Sky Italy they've received a proposal from PSG today.
Oh, and in case you've been living on Mars for the past two weeks, Neymar is joining PSG. It's happening. The deal is on.
So who is Neymar? How much does he earn per week? And what do we know about the transfer to PSG?
15:00: Journalists are waiting outside La Liga’s offices near Madrid airport for Paris Saint-Germain to arrive and pay his £198.5m release clause.
Neymar’s agent has claimed PSG are ready to meet the fee, despite claims it would break Financial Fair Play regulations.
The Brazil superstar is set to seal a world-record £199million transfer from Barcelona to PSG in the coming hours.
Neymar made a brief visit to Barca's training ground today to inform them of his wish to leave the club, departing before their training session began.
And Barcelona team-mate Messi has reacted by posting a moving Instagram video made up of pictures of the pair.
14:30: Well, the Russian club wanted it to happen but PSG beat them to it.
3 - Third remains his best FIFA Ballon d'Or placing, when he came in behind Lionel Messi and Cristiano Ronaldo for the 2015 award.
13:45: Neymar is travelling to London before completing his move to Paris Saint-Germain, according to Spanish journalist Helena Condis Edo.
Condis has claimed Neymar will make a pit-stop in the capital with his agent confirming his move to PSG.
In a series of tweets, Condis said Neymar was travelling to London this afternoon to “disconnect” from the speculation over his future and study his PSG contract with his father Neymar Santos Senior and agent Wagner Ribeiro.
Ribeiro has just returned to Paris and even tweeted a picture of the Eiffel Tower and the caption: “Wonderful Paris, the Eiffel Tower, wine, gastronomy and FOOTBALL.”
Condis added that Neymar and his father did not meet Barcelona president Josep Maria Bartomeu today and that his flight out of the city from Barcelona–El Prat Airport was scheduled to leave at 1pm GMT.
The COPE presenter also quoted Neymar’s agent Ribeiro as saying PSG are going to pay Neymar’s release clause in the next few hours with a presentation set for the end of the week.
13:19: A PSG spokesman declined to comment today over whether Neymar is signing.
But they are one of the world's richest clubs following their 2012 takeover by Qatar Sports Investments, an arm of Qatar's sovereign wealth fund, which has transformed their fortunes.
That’s how they are able to afford the biggest deal in football history.
It’s the biggest deal in football history - but why is the move going through?
12:34: While Neymar edges ever closer to a move to PSG, some Barcelona fans think there is more to this world record transfer than meets the eye.
The Brazilian forward is set to complete a £199million switch to the Ligue 1 giants, but a number of Barca supporters feel this is just a stop-gap before heading to rivals Real Madrid in a season or two.
Is it just paranoia or could we be seeing Neymar alongside Cristiano Ronaldo and Gareth Bale sooner rather than later? – Check out all the best theories on Twitter here.
12:18: Barcelona have now released the following statement on their website about Neymar.