If those two are the ones he wants to fight in his remaining two fights of the contract, he should just vacate the 185 title so Machida can drop and take it.
Lyoto Machida, former UFC LHW hamp
Future UFC MW Champ
Benavidez, Barao, Aldo, Nate, Nick, Lyoto, TBD, JDS
Forever hanging in Anderson Silva nuts