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Ronda Rousey

In her heyday Ronda Rousey not only single-handedly convinced the UFC brass to welcome in female fighters to the promotion, but also became one of the biggest stars the UFC has ever seen.

Rousey’s reign of terror saw her winning her first eight-fights in a row by way of armbar, with all but one coming inside the first round.

By that stage Rousey had already defeated the likes of Miesha Tate (twice), Liz Carmouche and Sarah Kaufman with ease, and she’d go on to continue her winning stretch against Sara McMann, Alexis Davis, Cat Zigano and Bethe Correia in a combined time of just 2.12mins.

Now 12-0, ‘Rowdy’ looked unstoppable, right up until Holly Holm dished out a devastating beatdown punctuated by a head kick KO early in the second round of her next fight.

Rousey was clearly shell-shocked afterwards and took a year out from competing, only to return and experience more of the same in December of 2016 with a 48 second TKO loss against Amanda Nunes.

This was a nightmare reversal in fortunes for the once indestructable Rousey, but though it was clear she had serious striking deficiences, she was still a major star and just as deadly a submission specialist as ever.

However, Rousey opted not to regroup and rebuild, instead leaving the UFC to start a new career in the WWE as a pro-wrestler.