#4. Ronda Rousey vs. Cris Cyborg:
Cris Cyborg vs. Ronda Rousey is a fight that the fans have been waiting for a long time. The fight was teased plenty of times, but somehow never ended up happening.
At this point, the two of them meeting in the Octagon is something that can never happen again, with Rousey unlikely to return to UFC.
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However, this remains one of the only matchups on this list that can possibly still happen, as there are rumours of Cris Cyborg possibly making the move to WWE.
With this fight in the offing, a dream match between Cris Cyborg and Ronda Rousey is certainly not off the books, although it may take place in a WWE ring instead of a UFC Octagon.
Both fighters are extremely dangerous, and their single-minded focus to the sport has seen both at the top of their sport.
Currently, Rousey has made a name for herself already in WWE, winning the Women's Championship, and a match against Cris Cyborg is something fans would definitely want to see.