《who is》,Copa del Rey is a Spanish national cup tournament, where teams such as Barcelona and Real Madrid compete. Betting on the number of yellow cards in matches of this tournament always attracts bettors. Players can bet on the total number of yellow cards that the referee will issue during the match..

《who is》,Copa del Rey is a Spanish national cup tournament, where teams such as Barcelona and Real Madrid compete. Betting on the number of yellow cards in matches of this tournament always attracts bettors. Players can bet on the total number of yellow cards that the referee will issue during the match..