Kell Brook told Ringside about the lessons he learnt from his tough points win over Carson Jones and why he would knock out Amir Khan.
Brook takes on Hector Saldivia on the 20th of October in an IBF welterweight title eliminator and says he is much better prepared after the Carson scare.
"In that fight, in the later rounds I started to tire," admitted Brook on Ringside.
"No one was happy after the fight but I learnt that I had a big heart - I had nothing left in the tank but the will and the heart got me through that fight. Now I am tested and I know that in my next fight I can go 15 - 20 rounds and come through them.
"We have been back to the drawing board and have addressed a lot of things. We have heart monitors on and it is all about numbers. We are absolutely meticulous about what we are doing in terms of food, strength and conditioning. I cannot wait to see what I am like come the 20th."
Brook also revealed why he turned down an opportunity to fight WBO welterweight champion Timothy Bradley, who controversially beat Manny Pacquiao via a split decision
"From day dot my promoter and I have had a plan and that was to go the IBF route. We have this fight on the 20th and then a world title shot with no ties - Bradley wanted options and the money was not great. We know where we want to go and that is down the IBF route."
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With Amir Khan sitting next to Brook in the Ringside studio, talk soon turns to who would win between the two - and while they may disagree on who won in their sparring days, they do agree on one thing. Ricky Hatton.
"Kell and I have sparred a bit in the past when I was an amateur - I used to box him all around the ring," said Khan
"You got schooled," counters Brook.
"No, I was training for the Olympic Games and Kell was in the juniors and I schooled him around the ring. I have never sparred with Ricky but I think Ricky would be the tougher fight. Ricky has been in with world class opponents and has shown he is a world class fighter at that level."
Brook agrees: "I think Ricky would be the harder fight for me too - obviously with all his experience and he is an all-round fighter. He can take a shot and he keeps on coming. He has got a good engine on him.
"If Amir comes up to 147lbs and he is in with me it is not going to be good. We know that he cannot take a shot to well. It would be just a matter of time before I landed one and he would be gone."