Both of them are amazing and they had fantastic fights in their carrier but I think it's correct for them to stop fighting at this point.
I will always remember how Luke Rockhold smearing his blood all over Costa face
https://www.youtube.com/watch?v=QLXTm5yP7aA
Luke Rockhold is one guy you don't want to mess around with if the fight was just on the street and not one inside the Octagon he would surely have kicked the crotch of Costa to make an illegal something just to beat Paulo Costa, I will never forget his weigh-in with his dog, and yeah that Smearing of the blood on Paulo Costa was out of desperation or he wants Costa to taste it, but surely Daniel Cormier have hugged Luke Rockhold while getting outside the event, and that is one sweet dude,
While Paulo Costa has tweeted that the referee was cheating and he wants UFC to have video referee assistance watching for a referee that is cheating but Costa is referring to both Rockhold and Romero Bodyshot knockout and he has pictures of it,
But those body shots were the Crotch shot he made and Rockhold and Romero were really in pain so the referee decided to take a break to sway that illegal shot that Costa gave to both fighters Paulo Costa's mind might be damaged by Israel Adesanya to be this kind of a thick-headed, that was an illegal blow he is trying to say a referee cheat but it was his cheating tactic to cause those low blow, I might be wanting Paulo Costa to be dealt with by Jan Blachowicz or Glover Teixeira but he is still starting with the Light Heavyweight division so I think that is impossible,