Tyson Fury will do everything in his gigantic powers to put Dereck Chisora into deep freeze on this ice-cold Saturday night, yet admits he will feel a pang of remorse as and when that knock out is inflicted.
For Fury it is an essential requirement to batter away his old friend's renewed challenge, so as to cement a spring super-fight against rival champion Olexsandr Usyk for the undisputed world heavyweight title.
The tinge of melancholy is rooted in their rivalry over the past decade and has been brought to the surface by Fury's realisation that victory for him in the Tottenham Hotspur Stadium may come in Chisora's final fight.