The ref did a good job. The point deduction for the low blow was wrong b/c it wasn't low and that's what cost Marquez the fight. However the ref didn't stop the fight in the last round when many others would have. In their second fight Marquez claimed that the ref stopped it too early, so it's a bit of a damned if you do damned if you don't situation in someways. The protest will go no-where. Both guys agreed to another fight straight after anyway didn't they?