Neymar is a "much more mature player" at Paris Saint-Germain than he was at Barcelona, according to Rafinha.
PSG forked out a world-record fee of €222 million (£198m/$263m) to bring Neymar to Parc des Princes from Camp Nou in August 2017.
The Brazilian had established himself among the very best players of the modern era during his time at Barca, scoring 105 goals in 186 matches while also getting his hands on two La Liga titles and the Champions League.
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However, he struggled to reach the same heights during his first two seasons at PSG, with persistent injuries and disciplinary issues preventing him from fulfilling his full potential.