Neymar has long been a transfer target for the Catalan club, but the 20-year-old only recently committed his future to Santos until 2014.
"Neymar has a place in Barça"s current team," Belletti told COM Ràdio.
"He is an impressive player and he could succeed at Barça, who would allow a player of his calibre to succeed.
"Barça are a club who could make Neymar the best in the world, just like they have done with [Lionel] Messi."