Junior dos Santos, along with former UFC LHW Champion Mauricio "Shogun" Rua and referee Mario Yamasaki, were invited to be part of the panel for a special edition of UFC Sem Limites, where they discussed various things in the world of MMA. One being Thiago Silva's unfortunate decision to take banned substances prior to his fight with Brandon Vera. Junior dos Santos comments:
"No I’ve never seen (someone taking performance-enhancing drugs [PEDs]), but I think at Heavyweight that happens a lot for sure. When you see people like Alistair Overeem, Brock Lesnar, look at the size of those guys, they’re really big. As Mario (Yamasaki) said, a lot of people use them but a lot of people don’t. I’m someone who has never used (PEDs), I think I came in the good phase of MMA and I’ve never used them."