Eamonn Sweeney: We can't sit on the fence any longer
So which side are you on in the big fight? Both combatants normally compete in separate arenas. Both are at the very top of their own particular game. Neither is used to losing and neither likes it. And to spice things up further you've got the age-old racial connotations of a battle between a black man and a white man in America. There are going to be fireworks.