What Rockholds was thinking when he did that? Tried to close Costa eyes with blood? Should have used punches instead to create bruises or bloody face

Not only that move looked stupid, but he could infect Costa with some crap. Thanks God Costa has "secret juice" (have you seen his move Fuck USADA during weight ins?) and alcohol (even though wine usually have low spirit percentage) to disinfect possible virus.
Infect him with what exactly? This is not underground street fighting.
All fighters are examined before fights and they can only fight if they are healthy, but besides that you are aware they got covered with blood all the time, abd cage is full of blood.
If you want sterile conditions you should not be fighting in MMA, but continue fighting in virtual video games

I think Rockhold finished his carrier in a style, and he did that to piss of Costa.
lol you really have a different view of it. its just gross to see him deliberately wiping the blood to Costa's face. its disgusting. although we get use to seeing them not just in MMA where they are spitting all over the place, it looks gross doing it.
I'm looking forward to the Chimaev vs Diaz fight. Goosebumps. Chimaev is crazy and i think Chimaev will dominate in every match he fights. However as the fight dragged on i observed Chimaev falling out of shape. If Diaz manages to prolong the fight i think he has a chance. But i did not see anyone who could stop Chimaev. I'm looking forward to the fight of the two madmen. I hope they meet each other at the press conference.
Diaz may not be afraid of fighting anyone but Chimaev is just not the one that he can really duck and cover. he will be lifted up and Chimaev will once again ask what the judges they expect to happen.