Alright, there's nothing big or clever about this one: they're both nicknamed The Viper, and sometimes that's enough. Even so, both Randy Orton and Oberyn Martell are extremely skilled fighters and known to have ferocious tempers (remember when Randy was diagnosed with Intermittent Explosive Disorder?). Plus, though they're both well-liked in their fields, neither really cares all that much who likes them (or doesn't). They're fiercely independent and all the more entertaining to watch because of it, and yeah, that Viper thing was always going to bind them together...