Brandon Rios enters the toughest challenge of his career Saturday when the all-action fighter challenges Manny Pacquiao at Cotai Arena in Macau.
Rios (31-1-1, 23 KOs), who enters the bout following the first defeat of his career, a decision to Mike Alvarado in their March rematch, has a prime opportunity to make the leap among the sport's elite. The Mexican-American fighter will be facing a true icon of the sport in Pacquiao (54-5-2, 38 KOs), who is coming off of two consecutive defeats for the first time in his career.
In order to win and achieve this goal in his first headlining role in a pay-per-view, here are five keys for Rios against Pacquiao: