On first watch Saturday night, the Jon Jones title defense over Thiago Santos was an unremarkable ending to an otherwise explosive show in Las Vegas.
When it was over, with Jones winning a closer-than-expected decision in a fight with few highlights, most of the talk was the undercard. Jorge Masvidal scored the fastest knockout in UFC history. Amanda Nunes solidified herself as the greatest female fighter of all-time. Should Luke Rockhold retire? Should Holly Holm retire? Should Diego Sanchez retire? Should Gilbert Melendez retire?