Neymar has admitted to having some "very tense moments" in his final days with Barcelona ahead of his world-record switch to Paris Saint-Germain.

The 25-year-old completed his move to the French capital last night, signing a five-year contract in a record £200m transfer deal.

The announcement brought to an end a fraught couple of weeks for the Brazilian, who was filmed last week getting involved in a physical altercation with then-teammate Nelson Semedo in training.

"It was one of the most difficult decisions I have ever taken," Neymar told reporters at his PSG unveiling this afternoon. "I was at a great club at Barcelona, I have friends there and it was not easy to leave at all.

"It was very tense moments, I had to think and re-think about what I wanted to do in my life, I leave very good friends behind, but that is football. Things go fast in football.

"I want to thank all my friends at Barca, they welcomed me so well but it was the right time to leave. I spoke with the Brazilian players here and they were happy for me to come here.

"It was not easy - I had to think a lot, I had to think what I wanted to do with my life. A lot of people wanted me to talk about it but it's difficult to communicate when you're not 100% sure what you want to do.

"But as soon as I made up my mind, I started communicating. This is what my heart told me to do. I always ask my heart every day and my heart told me, 'Go to PSG.'"

Neymar is expected to make his debut for his new team tomorrow afternoon when PSG welcome Amiens in their opening match of the new Ligue 1 season.