Pereira suffered a nightmare moment when he was robbed of possession and allowed Palmeiras' Deyverson a clear run on goal to score the winner.
He posted: "I'm here with a heavy heart! Today I made a mistake!
"There was no lack of will .. and it will never be lacking!
"Difficult moments show the character of our group that in these 3 months welcomed me into the @flamengo family with so much affection!
"I apologize for today's mistake!
"I promise, I will win you back!"
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