Why Nate Diaz never wants to fight on the same card as brother Nick

It's a dream scenario for fans of Stockton's most famous siblings: Nick and Nate Diaz fighting together on the same card. Even better, for symbolic value, if it's at UFC 209, which should go down some time early next year.
But Nate Diaz isn't a fan of the idea. The brothers Diaz have never competed on the same event during their combined 65 pro MMA fights, and if the younger brother has his way, it'll never happen.
"I don't like to fight on the same card as anyone I train with, or my brother, es