Augusto 'Tanquinho' Mendes has pulled out of the last-minute UFC bout he signed up for only two days ago. 

Mendes, an IBJJF World champion both gi and no-gi, signed with the promotion to replace an injured fighter. He was scheduled to face Charles Rosa on the undercard of Sunday's UFC Fight Night: Dillashaw vs. Cruz. 

The aspiring MMA fighter explained on Facebook today that shortly after signing and returning his paperwork for the UFC, he suffered an injury that will prevent him from fighting. 

I got the call from UFC on Sunday afternoon and accepted to fight in a short notice fight on UFC Boston on the 17th. I spent the rest of Sunday and pretty much all Monday working to get done with all the paper work...finally Monday night I sent everything to them and the UFC announced on Tuesday that I took the fight.. on my first training on Tuesday, I was doing a BJJ and rolling with one of my students and I got hurt with 5 days left to the fight.

Mendes has stated he believes the UFC will schedule another fight for him in the near future.