It is well known that Kohli started taking fitness much more seriously post an ordinary IPL in 2012. He changed his training regime and eating habits completely, realising the need to transform his body to survive the rigours of playing all three formats. An impromptu conversation with Fletcher also helped.
"Duncan told me once that he feels cricket is the most unprofessional of professional sports," Kohli told The Telegraph after India won the second Test in Vizag to take a 1-0 lead in the five match series against England.
"You need a set pattern of your training, the way you eat, how healthy and fit you need to be. Being fitter made me mentally stronger. It was like a direct connection," Kohli recalled.
India's batting mainstay admitted that it was tough to follow the strict regime initially.
"It changed in 2012. I had great tours to Australia and scored 180 against Bangladesh and went into the IPL thinking: 'Wow this is going to be a great season for me'. I wanted to make it my tournament and dominate the bowlers. I really struggled.
"I was 11 or 12kgs heavier than I am now, I was really chubby. I changed everything from the next morning from what I eat to how I train. I was in the gym for an hour-and-a-half every day. Working really hard, off gluten, off wheat, no cold drinks, no desserts, nothing. It was tough.
"From 2015 I changed my training again. I started lifting, snatching, cleaning and dead lifting. It was unbelievable. I saw the result. I remember running after a ball in a Test series in Sri Lanka and I felt more power in my legs. It was, like, 'wow'. This training is addictive. The last year-and-a-half it has taken my game to another level," he explained.
"One of the things I would love is for this team to win series outside India, not just in one place but everywhere we go. For me it is not winning one Test match and saying we made history and then not being able to follow that up. I want us to be the fittest Indian team that has played the game as well.
"That is our goal to be become better people along years of playing together. Friendships to last. Most exciting thing is everyone is young building careers together. If things fall in the right place this could be a great phase for us," he added.
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