Big John McCarthy is known as the Godfather of MMA officiating, having called fights as early as UFC 2. The veteran referee is also one of the most knowledgeable about MMA rules, having written the original rulebook for the UFC and later helped create the Unified MMA rules way back in 2000 that are still used today.
While McCarthy is well-known for his massive size and his iconic “Let’s get it on!” catchphrase to start fights, he is also highly respected in the
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