UFC 125, the promotion’s New Years Day event, has suffered another blow with a new report from heavy.com suggesting that featherweight champion Jose Aldo has pulled out of his co-main event title fight with Josh Grispi due to injury.

ESPN’s Josh Gross reports that Aldo has crushed vertibrae which caused tingling in his arms and a loss of strength.  He will now be out for at least a month for therapy.

At this stage news there’s no news regarding who will now fight in the co-main event slot on the January 1st event which is currently headlined by a lightweight title fight between Frankie Edgar and Gray Maynard.

Shane Carwin Vs Roy Nelson had originally been scheduled to be the co-main event on the card, but that also had to be canceled due to injury.

Aldo Vs Grispi was then announced and had been seen as the perfect showcase bout to usher in the UFC and WEC’s merger.  Prior to Saturday night’s UFC 123 event Aldo had been officially been handed the UFC’s first ever featherweight belt by Dana White to replace his existing WEC title.

It’ll be interesting to see what the UFC does now.  Personally I think it may be an idea to move one of the WEC’s two title fights (Ben Henderson Vs Anthony Pettis or Dominic Cruz Vs Scott Jorgensen) which currently headline the promotions final event in December to the co-main event slot instead.

It’s nice that they are trying to stack the WEC’s final show, but having a big showcase fight on the New Year’s card to help start off the new era with a bang seems like the smart move to make.