This past week on Monday Night Raw, WWE made a big announcement, booking the first ever Women's Royal Rumble for the Royal Rumble pay-per-view which takes place from the Wells Fargo Center in Philadelphia on January 28.

Raw commissioner Stephanie McMahon made the major announcement, declaring the first ever Women's Royal Rumble match at the Royal Rumble event next month, with the eventual winner receiving a championship opportunity at WrestleMania 34 in New Orleans next year in April.

It's going to be an exciting moment when Women's Royal Rumble takes, as you would think they will also have moments throughout their rumble where returns occur, legends show up, and NXT stars make their debuts on the main roster, just like the men's version.

One of these possible big moments in the Women's Royal Rumble next month is the long-awaited debut of Ronda Rousey in the WWE, but if reports are to be believed, this actually might not be happening at all.

According to Pro Wrestling Sheet, Rousey hasn't signed a WWE deal yet and it's unlikely she'll appear on a WWE broadcast until that happens. She is also set to star in a movie with Mark Wahlberg called Mile 22, which began filming last month.

According to one of their sources, filming for the movie isn't expected to conclude until after the Royal Rumble pay-per-view takes place, which could mean she won't appear in the Women's Royal Rumble at the event due to insurance reasons.

WWE has had a strong interest in Rowdy for many years now, and she has already appeared on their programming several times, including in a spot at WrestleMania 31 with Stephanie, The Rock, and Triple H, as well as at the Mae Young Classic tournament back in September.

It is also worth noting though that a major storyline of the MMA's Four Horsewomen vs WWE's Four Horsewomen looks to be no longer happening for Rousey if she does turn up in the WWE, as Jessamyn Duke and Marina Shafir have stopped training for their WWE appearance as part of MMA's Four Horsewomen.

Stories like this have come out for other superstars in the past, only for WWE to hammer out a deal for them to appear in an event, so while at the moment it looks bleak for Rousey to appear in the Women's Royal Rumble, we can't rule it out completely.

Or as WWE says, never say never.