#3. Alexa Bliss - Lost her spot in the WWE Women's division in 2018
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Alexa Bliss dominated the WWE RAW Women's division for a year-and-a-half. Looking back on it, there was a lot of heat on Bliss, who seemed to win Championship after Championship in WWE. At first, she was drafted to SmackDown and Becky Lynch was used to establish her.
She would enjoy two reigns as the SmackDown Women's Champion before being moved over to RAW, where her dominance began. It's easy to forget how bad her feud with Bayley was, because of how the latter was used and humiliated over and over against Bliss.
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In the span of just 13-15 months, Alexa Bliss held the RAW Women's Championship three times - first for 111 days, second for 222 days, and the third for 63 days. In between the first and second reign, she only lost the title to Sasha Banks before regaining it after eight days.
WWE fans got a bit tired of Alexa Bliss' dominance, but luckily for them, Ronda Rousey was in the promotion by 2018. By the summer of that year, she challenged Bliss for the RAW Women's Championship at SummerSlam, and the match was set.
It was unfortunate for Alexa Bliss, not because of her defeat, but her subsequent concussions. Rousey dethroned Bliss with ease to become the face of the WWE women's division at SummerSlam. But in their rematch at Hell in a Cell, the latter suffered a concussion.
For some reason, she was still booked to compete at the Evolution pay-per-view, but WWE removed her after another concussion when facing Rousey.
That was Alexa Bliss' last singles Championship in WWE. She would find success with Nikki Cross in the women's tag team division, but the back-to-back concussions made her fear that her career would be over.