Valentina "The Bullet" Shevchenko will get a shot at redemption as she rematches Amanda "The Lioness" Nunes.

But now, after only suffering one UFC loss (which was, of course, the first time she fought Nunes), she is firmly focused on capturing the belt this weekend.

Women's strawweight champion and pound-for-pound queen Joanna Jedrzejczyk has a solution on how to fix the gaping hole atop Saturday's UFC 213 card in Las Vegas. Shevchenko will cause Nunes problems but such is the confidence of the Brazilian at the moment, it seems Nunes is ready to cement a legacy in the Bantamweight division.

Since her decision came just hours before the fight, we're told the co-main event is now the main event - Yoel Romero v. Robert Whittaker.

What makes it so hard to predict is the obvious adjustment for each fighter from the first meeting.

Both Romero and Whittaker have been on a tear, winning their last eight and seven fights in a row respectively and in what will be a wrestler vs striker match-up, it promises to be one of the more exciting and much-awaited fights of the year. The two fighter first met at Pride Total Elimination Absolute in 2006 which Werdum won via submission while at Strikeforce in 2011, Overeem won via unanimous decision. There's a lot of pressure, media and people watching her. After that fight, I became a champion, and I will make Valentina understand I'm the best in the world now.

"I've proven myself", Nunes said. That alone would be a recipe for disaster, but I can't shake the feeling that Romero is poised to win this fight for the interim middleweight championship.

Though the Pole is undefeated in MMA, she has suffered three defeats in Muai Thai to Shevchenko.

The middleweight division is now one of the most exciting in the UFC at the moment; there are plenty of top fighters, but with Michael Bisping still awaiting confirmation of whether his big match with UFC legend George St. Pierre is going ahead - the rest of the middleweights have been in limbo. "It's very important to me to keep this belt".

"There's nothing to talk about with that fight", Nunes said. The crescendo of this week's festivities will be Saturday's main card, featuring two of the best heavyweights, two of the best middleweights and the two best female bantamweights in the world.

The bout headlines a pay-per-view card that includes a middleweight title bout between Yoel Romero and Whittaker. Four additional preliminary card bouts follow at 8 p.m. ET on Fox Sports 1, with the five-fight main card airing live on pay-per-view at 10 p.m. ET.