#4: Ronda Rousey v Asuka

Asuka won the first ever Women's Royal Rumble earlier this year. However, her celebrations were interrupted rather rudely by a debuting Ronda Rousey.
Asuka is arguably the best performer in the Women's Division today, and a matchup against "The Baddest Woman on the Planet" will be a major selling point.
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Both women have a submission based wrestling style and are known to seemingly break the limbs of their opponents. Their personalities are pretty similar too, happy women that can become ruthless when needed.
Ronda Rousey has tremendous MMA experience behind her, and Asuka has spent majority of her career fighting in extreme matches in Japan. Both the superstars will produce a vicious encounter.
Although it is unlikely to take place soon as Rousey is scheduled to face Becky Lynch at Survivor Series this year, it still remains a major dream match-up for the fans, and should happen sooner rather than later.