Amir Khan and Kell Brook have opened up about those infamous sparring sessions that started their bitter feud.

Brook put an end to his rivalry with Khan in emphatic fashion on Saturday, stopping his fellow Brit on his feet in the sixth round to win one of the most bitter grudge matches in British boxing history.

The pair spent many years insulting each other having crossed paths as teenagers during a Team GB training camp at the English Institute of Sport in Sheffield prior to the 2004 Olympics.

Accounts have differed as to exactly what went on during those sparring sessions over the years.

But former two-weight world champion Khan, 35, has now admitted that he can't actually remember a thing about them - despite previously claiming 'I boxed Kell all around the ring'.

Speaking at the post-fight press conference, he said: "To be honest with you Kell I don't even remember the sparring sessions."

Khan added: "Listen, I'm serious, do you remember them Kell? I don't remember them."

Boxing - Amir Khan v Kell Brook - AO Arena, Manchester, Britain - February 19, 2022 Kell Brook with Amir Khan after winning the fight Action Images via Reuters/Andrew Couldridge

Brook replied: "It was that long ago, listen it is irrelevant now."

His trainer Dom Ingle chimed in: "Actually Brian Rose beat them both up, that's what it was."

Khan insisted: "Listen I sparred Brian Rose back when I was like 15 and I thought he was so good."

Ingle interjected again: "Fantastic jab."

Khan continued: "He was amazing and I remember that he kept picking me off."

Before adding, "But I can't even remember me and Kell sparring but it made a good storyline no?"

WATCH: Amir Khan speaks to the media following his loss to Kell Brook

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Khan also hinted he is considering retiring from boxing after suffering a lopsided defeat at the hands of Brook in front of a sold-out crowd at the AO Arena in Manchester last weekend.

He revealed: "The first time I felt like this was when I fought Bud Crawford.

"I felt like I just can't get in the groove. I thought maybe it was just because he was that good. And today again, I tried to get in the groove, and I just couldn't really get in the groove.

"It's something to think about it, definitely. I've always said I don't want boxing to retire me, I want to retire from boxing before it does that.

"Punishment like that sometimes in boxing, I know I showed a big heart and took some big shots today, but sometimes too much of that can be harmful in the future.

"I've done more than I ever expected. Maybe I peaked too early in my career, I was at the Olympics at 17, I won the world title at 22. I'm 35 now, I've been in the game a very long time, I'm an old man now.

"I want to spend time with my kids and my family. I want to be there for my family, I want to take them to school at be that father."