Often referred to as the most dangerous eight seconds in sports, bull riding is not for the faint of heart. In fact, the medical director for the international organization Professional Bull Riders estimates that about one in 15 rides results in injury. Yet, the sport is gaining popularity. Since PBR was founded in 1992, the sport has grown into a global phenomenon. Over the course of a weeklong competition, riders can earn up to six figures in prize money. This weekend, PBR is hosting a competition at the Enterprise Center. Riders and their bulls will be coming to St. Louis with several events already under their belt, and competition this year has been tough. One of the riders competing is Brady Sims. The Missouri native is currently ranked as the 27th rider in the world.