Ronaldo has been hammered by fans over the timing of his 30th birthday party, just hours after the derby defeat to Atletico Madrid.
"I was in Madrid two or three days earlier to watch the game against Sevilla and I knew there was a party that day... It would have been strange to call everything off after the game, in spite of the fact it is always hard to accept defeat (4-0 against Atlético de Madrid)," said Santos.
"He'll respond on the pitch the way he always does, with goals, with his art, with his ability."
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