Someone needs to take Marty for a class on plausible deniability. If you pretend not to know someone/something that everyone knows you A) most certainly do and B) Is more famous than you, it just makes you look like a complete idiot.
Conor not knowing who Stephens was? We all know he did but Stephens was low profile enough for it to work. Also nowwhere near as funny as the below example.
Colby pretending not to know Leon Edwards' correct name? Genius, because he didn't try to deny he was aware of such a fighter, just that the fighter was so obscure that he couldn't remember his name properly. This is how you do it, folks.
Pretending not to know what EPO is? Makes you look like an obvious PED cheat.
Pretending not to know who Masvidal is? Makes you look like a moron.