#5 Ronda Rousey

Perhaps no other UFC legend had as quick a downfall as Ronda Rousey. The former UFC Women’s Bantamweight champion went from being the biggest and most bankable star in the promotion in mid-2015 to retired in December 2016 following her two losses to Holly Holm and Amanda Nunes. It felt like ‘Rowdy Ronda’ simply couldn’t deal with the fallout from those losses and chose to walk away instead.
Her loss to Nunes, in particular, was crushing; while her loss to Holm had been a devastating knockout, there was still the feeling amongst a lot of fans that she’d simply made the error of having too much confidence in her striking game, and if she went back to the judo-based style that had given her so much success – including 6 straight UFC title defenses – she could get back to the top.
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Against Nunes though, she was never given the chance. Once again attempting to stand with her opponent, Nunes simply destroyed her with a flurry of punches in the first minute of the opening round. Such a terrible loss was always going to be hard to bounce back from, and so it didn’t really come as a surprise when her retirement was announced in 2017 – along with her move to WWE. Rousey has since been inducted into the UFC’s Hall of Fame – a fine endorsement of her legendary career prior to her two losses.