"I used to be sat ringside watching at fights and be missing the sport thinking, "Wow, I want to be back in the ring again". I've had a hand operation and the hand felt good in the fight.
Coverage of tonight's boxing bout between Amir Khan and Phil Lo Greco will be shown live on Sky Sports Main Event from 9.45pm tonight.
"We've made it even more realistic to happen now, because I'm with Eddie Hearn and so is he", he told 'Amir Khan: Off Limits'.
"I have been out the ring for two years but I was still in the gym working hard, I have never taken a day off".
The 31-year-old will have a British homecoming fight against Lo Greco in Liverpool this Saturday night, live on Sky Sports, and a victory could line up a big domestic battle with Brook.
Khan's blurring hand speed was evident as he floored Lo Greco (28-4, 15 KOs), 33, with a left hook followed by an overhand right. Kell Brook has been living off my name for a long time.
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There will also be plenty of undercard action before the big boxing match begins tonight, with Khan hoping a win will help spur further bouts this year.
As Kell Brook watched on from the crowd, in Liverpool's Echo Arena, Khan said: "I want to say a big thank you to Liverpool".
"Enjoy my victory. Khan's back".
This was the first of a three-fight deal Khan had signed with Eddie Hearn and his promoter had conceded his fighter could not afford a fifth defeat on his record.
But Khan says he would not suffer the same fate as Brook if he shared the ring with Errol Spence Jr, who ripped his rival's IBF welterweight title away with an 11th-round stoppage last May. "When he gets in there with me, I'll make him see stars!"
Khan stated that he is a 147lb fighter and is not a 154lb fighter, which immediately puts a potential clash with Kell Brook but in same breath states that he is chasing Kell Brook.