Surprising not a thread about them fighting each other. Not too long ago the champs where almost split between Americans and Brazilians now Aldo is the last one standing of the Brazilians. The reason is that Brazilian fighters have a basis in jujitsu and american generally in wrestling. We are at an age where "transitional" martial arts (that choice where the fight will take place) are the most important base for a fighter. With the loss of Barau to Dillashaw the champs all have a basis in wrestling, and jodo for Rousey... except Aldo and Pettis. I think that they aren't going to be able to hold their titles much longer (and I quite like Pettis). If Aldo gets past Mendez he's in the clear at featherweight for a bit if he stays there, but he isn't much of a finisher any more and Mendez one the first round till he got caught, plus he's greatly improved, something I haven't seen much from Aldo. Pettis is about the face a nasty gauntlet with wrestling based Melendez and Thompson, plus Khabib's Sambo takedowns. If he can make it through that he is in the clear for a bit. But I expect they will have both lost before their challege is over.