Jose Aldo suffered a spinal injury (termed a stinger) that left him unable to prepare for his bout with Chad Mendes.  As a result, UFC has scrapped the entire card for August 2.

Initially reported on Yahoo, the organization confirmed Tuesday night that the event, scheduled for the Staples Center on August 2, is off.  Fights currently on that card will be moved to other upcoming fight cards.

Aldo was injured in training, injuring both his spine and shoulder.  He is expected to be ready to fight iin October, and he will then face Mendes in the rematch that was to take place on the now canceled card.

This is the second time in two years that UFC has been forced to cancel an event after losing the headline fight.  UFC 151 in September 2012 was canceled when Dan Henderson's injury forced him out of his scheduled bout with Jon Jones.  As was the case at that time, UFC will not be renumbering events, and the August 30 event scheduled for Sacramento, CA will be UFC 177.

UFC announced the following refund information on their website:

As the STAPLES Center event will no longer take place, ticket refunds will be offered at the original point of purchase.  If tickets were purchased from AXS via www.axs.com or Purchase by Phone, refunds will be received automatically via AXS.  Tickets purchased from the STAPLES Center Box Office can be refunded there, beginning Wednesday, July 9.  Those who purchased tickets at any other outlet should reach out to that original point of purchase and contact them directly for a refund.

Really, UFC didn't have much choice but to pull this card.  They could have tried to put Gegard Mousasi vs. Jacare Sousa on FS1, but there just were no options for a headliner.  There are a number of champions and top fighters who are injured or returning later this year.  It wouldn't have made all that much sense to rush into some sort of non-title fight scenarios just to have a pay per view card.  While I feel for the fans in Los Angeles who were looking forward to this event, this was the right call.