Professional wrestling referee and are subsequently often used by heels and on occasion by cheating faces to win matches. Even if it is noticed, it is rare for such an attempt to result in a disqualification (see below) and instead it simply results in nullification of the pin attempt, so the heel wrestler rarely has anything to lose for trying it anyway. Occasionally, there are instances where a pinfall is made where both wrestlers' shoulders were on the mat for the three-count. This situation will most likely lead to a draw, and in some cases a continuation of the match or a
Professional wrestling that opponent. The last wrestler standing is declared the winner. A variant on this type of match is the WWE's Royal Rumble where two wrestlers enter the ring to start the match and other wrestlers follow in 90 second intervals (previously 2 minutes) until 30-40 wrestlers have entered the ring. All other rules stay the same. For more match types, see Professional wrestling match types. Every match must be assigned a rule keeper known as a referee, who is the final arbitrator. In multi-man lucha libre matches, two referees are used, one inside the ring and one outside. Due to