As mixed martial arts has evolved, it has endured both its ups and downs over the course of its history, which is nearing the 20-year mark.
Now, with the sport inching closer to the mainstream, every aspect will be scrutinized to the finest detail.
Even so, it has already survived a number of controversial and surprising events that could have easily derailed its growth. Promotions have come and gone and fighters have made poor choices, but in the end, the sport is bigger than ever.
Let's take a look back at some of these events over the last five years.
Photo: Seth Petruzelli celebrates his win over Kimbo Slice - Sherdog