Bournemouth were ultimately reliant on Rayan himself to make his move to England happen.
The 19-year-old forward has impressed club officials since arriving at Vitality Stadium in a £24.7m deal from Vasco da Gama.
Eye-catching dribbles and shots have produced two goals and an assist in his first six games, meaning he is delivering output beyond expectations given he had not had a pre-season.
However, the move may not have gone through had it not been for the total buy-in of Rayan and his representatives.
Russian giants Zenit St Petersburg and clubs in Saudi Arabia were ready to rival Bournemouth in January, while English clubs in the Champions League wanted him to wait until the summer.