By FOX Sports Staff
Neymar completed his move to Barcelona two weeks ago after a protracted saga where he was pursued by Real Madrid as well.
When asked which players he regretted not signing during his years as president, Perez admitted that the Brazil star is amongst the names that he rues missing out on most and backed him to bring extra quality to the Spanish league.
He told Marca: "Patrick Vieira and Francesco Totti spring to mind. In Ronaldinho's case we hesitated, but we did manage to sign David Beckham that year.
"Neymar is among this group of great players. I hope he succeeds at Barcelona. Anything that improves the quality of the league is good and certainly Neymar represents an improvement."
Meanwhile, the forward's Brazil team-mate Thiago Silva believes his countryman will not be overawed by the prospect of lining up alongside the continent's finest players every week.
"He will playing with the best team in the world and I think he will be fine," he said.
"He will be surrounded with quality and he is prepared to meet this challenge. He will not be afraid of playing alongside the biggest names in world football."
Neymar himself admitted that he is still basking in the afterglow of his transfer.
"Yes, I am very happy to have completed my move [to Barcelona]. This has always been a dream for me," he told Telefoot.
"My feeling is no doubt one of great happiness. I have followed the ideal path and now I'm happy as a king."