It’s a fight that’s remembered by boxing fans as a true classic between two of the best heavyweights in recent times.
Anthony Joshua took on the experienced Wladimir Klitschko at Wembley last year looking to make a statement in his boxing career against the Ukrainian.
And after a hugely entertaining and competitive fight that swung one way and then another, Joshua eventually stopped the former world champion to make the boxing world sit up and take note.
AJ proceeded to arrange two more fights at the same venue, but after seeing off mandatory challenger Alexander Povetkin in September, the major question has been over who he’ll face in April.
Joshua and promoter Eddie Hearn made it clear that their number one target was American Deontay Wilder, but talks between the two camps have stalled over the last few months.
As a result, Tyson Fury has even managed to sneak in and arrange a fight with Wilder for December 1.
Fury has also been touted as a possible fight for AJ in April.
On the other hand, 42-year-old Klitschko announced his retirement in August after a glittering career in the ring.
But with AJ still yet to confirm his next opponent, Hearn suggested that they could be looking for a wildcard opponent next, opening up the possibility of a rematch with Klitschko.
But Klitschko’s manager, Bernd Boente, has ruled out the possibility of another high-profile clash.
When asked if his fighter would make a comeback to fight Joshua again, Boente told Sky Sports: "Not at all."
Very to the point from the Klitschko camp.
And whilst a rematch between the pair would have been exciting, it's probably best for Joshua to look at fighting someone new, whether that is indeed Wilder or Fury.
The tantalising and seemingly never-ending question is who.