Alvarado is not the first Miss World contender to meet a horrific demise in the final stages of the competition; in 2009, Mariana Bridi of Brazil contracted a bizarre urinary tract infection that left her dead a month later.
In Tate (17-5), Holmeetsts a No. 1 contender who was beaten twice by Rousey.
Tyson has already signed to meet the No1 contender, Evander Holyfield, in Atlantic City in June.
Let's meet the contenders, divided between American and UK conferences.
Before the competition, BBC News met leading contender Paul Crabtree to get some of his top tips for stone skimming - then followed him as he contested the title.
Last year's grand finalists travelled interstate to meet contenders, and were given harsh lessons about intensity and pressure early on.
Instead, McGregor met fellow top contender Chad Mendes, winning by second-round TKO for the organization's interim featherweight title.
Follow UFC featherweight, and proud Chicagoan, Clay "The Carpenter" Guida through the bowels of the United Center and into the Octagon, where he meets contender Hatsu Hioki.
Follow UFC featherweight, and proud Chicagoan, Clay "The Carpenter" Guida through the bowels of the United Center and into the Octagon, where he meets contender Hatsu Hioki. .
When first we met our contenders for the golden boy, they included veterans (Clint Eastwood, with the sports drama biopic "Invictus"), modern heir apparents (Jason Reitman, "Up in the Air") and upstarts (Lee Daniels, "Precious: Based on the Novel 'Push' by Sapphire").
