When Austin "No Doubt" Trout arrived in New York City this past December to defend his WBA junior middleweight championship against Puerto Rican legend Miguel Cotto, the odds were clearly stacked against him.
He was fighting a better-known opponent on his home turf in a fight that few people gave him a chance to win.
But not only did he win, he dominated Cotto winning a unanimous decision and derailing a potential super-fight between the Puerto Rican legend and rising Mexican star Saul "Canelo" Alvarez tentatively scheduled for this spring.
Instead it's Trout who finds himself in the biggest fight of his career and facing an opponent who most consider the top prospect in boxing and the sport's potential next breakout star following in the footsteps of Floyd Mayweather.
Again the stakes are high, with another possible super-fight looming in September, and Trout will once again seek to play the spoiler.
These are the five reasons that he will succeed and defeat Canelo Alvarez this Saturday at The Alamodome in San Antonio.