Neymar completed his record-shattering transfer from Barcelona to Qatar-owned Paris St Germain on Thursday, signing a five-year deal with the French club after they triggered his €222mn ($263mn) release clause.
The 25-year-old Brazil forward, who will be presented to fans on Saturday, is committed to PSG until June 2022, the club said in a statement. Media reports have said he could earn around €550,000 per week.
"Today, with the arrival of Neymar Jr, I am convinced that we will come even closer, with the support of our faithful fans, to realising our greatest dreams,” said PSG President Nasser al-Khelaifi.
Both Barcelona and Spain's La Liga questioned whether the move complied with UEFA's financial regulations, with the club saying they would report the deal to European football's governing body.
The transfer doubles the previous world record fee paid when Paul Pogba moved last August from Juventus to Manchester United for €105mn.
With the Spanish giants certain to be in the market for a replacement for the Brazilian forward — and with a hefty budget to invest — the Neymar move could set off a chain reaction of deals at top clubs across Europe.
Neymar said he was looking forward to delivering trophies for the French club.
"I am extremely happy to join Paris St Germain," he said in the club's statement.
"Since I arrived in Europe, the club has always been one of the most competitive and most ambitious. And the biggest challenge, what most motivated me to join my new team mates is to help the club to conquer the titles that their fans want.
"From today, I will do everything I can to help my new team mates, to open up new horizons for my club and to bring happiness to its millions of supporters around the world," he said.
Barcelona said on Thursday that Neymar's release clause had been paid.
Barca said in a statement on their website (www.barcelona.com) that Neymar's legal representatives "visited in person the club's offices and made the payment of €222mn euros..."
UEFA, whose financial fair play rules ban clubs from spending more than their generated revenue, declined to comment but a spokesman noted that international transfers are within the remit of global governing body FIFA.
Macron congratulates PSG chief
French President Emmanuel Macron congratulated the president of Paris St Germain on the soccer club's world-record signing of Brazilian star Neymar. "Congratulations! I understand there's good news," Macron said to Nasser al-Khelaifi during a joint visit to a children's holiday camp outside Paris. Al-Khelaifi responded with a smile.