It McGregor vs Diaz 3 maybe the biggest for UFC but Dana White is not allowing that to happen yet because McGregor have an obligation to defend his title and Jose Aldo is waiting for him in their weight division. Aldo is also hungry for revenge on his 13 seconds loss to McGregor. I heard that other options that Dana White have in mind for McGregor does not include McGregor vs Diaz 3. Not yet maybe.