Peru defender Carlos Zambrano launched a scathing criticism of Neymar's behaviour, labelling the Brazil star a "clown".
Neymar scored a hat-trick as Brazil twice came from behind to beat Peru 4-2 in CONMEBOL World Cup qualifying on Tuesday.
In a repeat of last year's Copa America final, Neymar earned two penalties and converted both as he leapfrogged Ronaldo for the second most goals in Brazil's history.
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Zambrano was sent off in the final minute of regulation, after substitute team-mate Carlos Caceda saw red three minutes earlier in Lima.