Serbian Miranovic coached mainly in Ecuador but also worked at various clubs all over the world.
Miranovic, who died of a heart attack, gave Valencia his big break during the winger's time at Ecuadorian club El Nacional at the start of his career.
Writing on his Twitter account, the 26-year-old said: “Dragan, this goal is for you, thanks for your advice and your teaching."
He added: "How sad to learn of the death of Dragan, the distance you send my condolences to his family and friends, sad day for football.
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“Tonight is very sad for me by the death of Dragan, the person who gave me continuity in football and for his great advice."
Valencia opened the scoring for United against Blackburn with what could have been a cross or a shot, and the Red Devil star was unsure himself.
Valencia laughed to Sky Sports in regards to his effort: "It was 50-50."