Soon after 10pm in London on Saturday night, Anthony Joshua will meet Wladimir Klitschko in an incredibly interesting heavyweight match up to contest the IBF world title that is held by the former and the WBA and IBO belts which are vacant.
But forget draining the alphabet soup of titles for this one, because the real fascination in the clash between these two former Olympians is in the questions that only Wembley Stadium can answer on 29th April.