Kell Brook makes it clear that his upcoming showdown with fellow former world champion Amir Khan is certainly personal.
The two British rivals will collide on February 19 at the Manchester Arena in Manchester.
Their feud has been raging for several years, but a contest never came off for one reason or another.
Brook explains that their hatred is not for show - he truly dislikes Khan and vice versa.
"It's personal. It's not made up. We dislike each other. I've got the grudge match of my career. I haven't lost anything. I might be 35. But Terence Crawford is 34, so is Shawn Porter, and they just had an epic fight. Crawford is one of the best pound-for-pound," Brook said to Sky Sports.
"I've still got the power, still got the timing, the experience. It will be one of my best performances. It's about bragging rights. Imagine - whoever loses has to live with it for the rest of their lives. I will put myself through hell in training. I looked into his eyes - he knows that I'm coming. He never wanted this fight but he's been backed into a corner. I've wanted it for years."
Khan, 34-years-old, has been away from the ring since July of 2019, when he easily stopped former champion Billy Dib.
Brook, 35, has been inactive since November of 2019, when he suffered a knockout loss at the hands of WBO welterweight champion Terence Crawford.
The contest will take place at a catch-weight of 149-pounds - as Brook is unable to make the welterweight limit of 147. There is weight penalty, where Brook will have to pay 100,000 for every pound above the contract weight.