A string of fortuitous events began for Vitor Belfort in his rematch with Randy Couture at UFC 46.
With the light heavyweight belt on the line, The Phenom took out Couture with a left hand early in the first round. Belfort's punch grazed Couture's eye, causing a corneal abrasion that ended the bout and momentarily gave the Brazilian the belt.
Roughly eight months later, though, Couture TKO'd (doctor stoppage) Belfort at UFC 49 to regain the light heavyweight title.
Belfort got his second gift from the MMA gods in the fall of 2012, not long after the UFC 151 light heavyweight title bout between Jon Jones and Dan Henderson fell through at the last moment.
The UFC called on Belfort to step in and challenge Jones for the belt at UFC 152. Belfort, who hadn't fought in the UFC's light heavyweight division since 2005, nearly pulled off a first-round armbar before getting worn down and submitted by Jones (Americana) in the fourth round.
While using testosterone replacement therapy, The Phenom won his next three fights via head-kick KO, a string of wins that at the time secured him a title fight with middleweight champ Chris Weidman.
But Belfort pulled out of his first scheduled title fight with Weidman (originally scheduled for UFC 173) because of his issues with TRT.
Fortunately for Belfort, the Nevada State Athletic Commission granted him a license to compete exclusively in Nevada in July.
Moments after he was licensed, the UFC announced that a TRT-free Belfort will challenge Weidman for the middleweight strap at UFC 181 in December.
Note: Belfort experienced a horrific personal tragedy in 2004 when his sister became the victim of a kidnapping and murder in Brazil.
But because this countdown's dedicated solely to fighters who have experienced extraordinary luck in their careers, not in their personal lives, Belfort made the cut.