The Brazilian starlet was highly critical of the Peruvian club's excessive amount of hard challenges and noted he could have been seriously hurt
The 20-year-old was one of many Santos players who were on the receiving end of a number of tough challenges, with the referee showing only two yellow cards to the Peruvians.
"This match looked more like UFC [Ultimate Fighting Championship] than football," Neymar told reporters after the game.
"Juan Aurich hit their opponents a lot and they only defend. I am feeling worse now than Wednesday [when he twisted his ankle in training].
"If I had not jumped over my opponents five times, I would certainly be in the hospital."
Santos are at the top of their Copa Libertadores group, with nine points from four matches.