piggy goldThe odds for yellow card bets range from 2:1 to 5:1， and vary depending on the intensity of the match. Matches with many fouls or intense action often have high odds for yellow cards. The Copa del Rey is a Spanish national cup competition， where teams such as Barcelona、Real Madrid和Atletico Madrid compete. Betting on the number of substitutions in matches in this tournament is an interesting tactical option. Players can bet on the number of substitutions the coach will make during the match.
