The fighting talk has already begun ahead of this weekend's showdown between London boxers David Haye and Dereck Chisora.
Haye's trainer Adam Booth says that he is in "frightening shape" ahead of the match at Upton Park on Saturday - and that he's used Haye's "hatred" for Chisora "as fuel" to get him training harder.
Both said: "This is personal. This is way more personal than the Wladimir Klitschko fight. That was business, but he hates Dereck Chisora.
"I've used his hatred of Dereck as fuel for training to make him do more. He wants it more.
"But come fight night he must fight an anonymous man and leave emotion out of it."
In February, the rivals sparked controversy by brawling at a press conference after Chisora's WBC title loss to Vitali Klitschko.