#4 Nikki Cross
The twisted sister of Sanity is the most recent NXT call-up to the main roster. Although Cross had made a one-off appearance during an episode of SmackDown facing off against Becky Lynch, this one seems like a permanent call-up.
Cross has been one of the most exciting stars on NXT for quite some time now and her involvement in the Aleister Black-Johnny Gargano storyline was a stroke of genius. Cross, on her part, played the role of a messenger to perfection.
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But despite being one of the well-rounded female performers on the yellow brand, Cross never won the NXT Women's Championship.
She has a couple of Championship matches where she came up short despite putting on an inspiring performance. Cross is going to debut on the main roster very soon and could very well be an entrant on the Women's Royal Rumble.
Cross has a unique personality which makes her stand out from the rest of the female Superstars on the main roster. Given the wafer-thin female roster on both brands, it will be quite a task for the WWE to find a new and fresh opponent for Asuka heading into WrestleMania 35.
Nikki Cross and Asuka had a riveting rivalry in NXT. Their chaotic Last Women Standing Match for the NXT Women's Championship is one of the best matches in NXT history. The duo has palpable chemistry and are the polar opposite of one another and have the ability to steal the show on any given night.