UFC 146: dos Santos vs. Mir

An unprecedented night featured the first all-Heavyweight main card in UFC history, headlined by a Heavyweight Championship bout between reigning Champion Junior dos Santos and former two-time Champion Frank Mir. Dos Santos retained the title with a second round stoppage, while the card also delivered dominant performances from Cain Velasquez, Roy Nelson, and future Champion Stipe Miocic, making it one of the most unique heavyweight showcases in UFC history.