Kell Brook was never totally convinced that he wanted to fight again after his legacy-defining victory over Amir Khan, according to his longtime trainer Dominic Ingle.

The 36-year-old Brook, one of the top British welterweights to emerge in the last decade and a half, announced Saturday that he is retiring from the sport. The former 147-pound champion last fought in February at the AO Arena in Manchester, England, a grudge match with sworn rival Khan. Brook had the final laugh, as he knocked out Khan in the sixth round. Brook’s record stands at 40 wins and three losses in 43 professional fights, 28 via stoppage.

After that fight there was strong talk that Brook would cash out with a final fight against Chris Eubank Jr., or, to a lesser extent, Conor Benn. But promoter Eddie Hearn, who has promoted Brook for most of his career and promotes Benn, said Brook wanted no less than 10 million pounds to fight again, which effectively ended Hearn’s potential involvement.

In a recent interview, Ingle said that Brook had already moved on from fighting and threw out the prohibitively high financial demand as a way to “price himself out” of another fight.

“That’s the kind of money Kell would want just to consider it (fighting again),” Ingle told Boxing King Media. “He was kind of pricing himself out of the job, really. ‘Well, so if you really want me to do it, give me that kind of money.’ I’m not particularly bothered. It’s kind of throwing out there just to put people off, well, that’s a ridiculous amount we’re not going to bother with that fight.

“I think that’s why Kell did it, really.”

Ingle said Brook, a husband and father, realized his post-boxing life was more attractive than he had realized.

“I think when he got back to normal life, looked at his kids, his family, his house, and everything and thought, ‘What do I need this for?’” Ingle said. “‘I enjoy myself now. [I’m] 36.’”

“Like I said, go out on a high. Enjoy your life. It is a bit of an adjustment. Of course it is.”

Ingle said the victory over Khan will remain an indelible achievement for Brook and his entire team. Ingle credited Khan for taking the challenge, even though the Bolton native was grossly outgunned.

“We look back on that night with great fondness because it was a tremendous night,” Ingle said. “It was even a tremendous night for Khan really even though he got beat. He made plenty of money and got a good response and he played the part. He turned up. He gave the fight fans a fight that they wanted. It was not the right decision for him, but he still got credibility, I don’t care what people think. He had a great career himself.”