"Everything's going well, thank God, but there's always this fear when you come back and I need to get rid of that fear as soon as possible to arrive at the World Cup," the 26-year-old, who has been out since the end of February, said.
"The idea is that he can return to working on the field from next week provided that he responds favorably to tomorrow's test," Brazilian team doctor Rodrigo Lasmar told selected media, including AFP, in Paris.
Neymar said that at first his return to competitive levels was "complicated. I was always afraid of making complete movements and I'd end up compensating".
The star also lauded his PSG teammate Kylian Mbappe, who is just 19, as "the best in the world for his age".
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