The famous mental coach for top athletes, who played a key role in guiding the MS Dhoni's world champions to the 2011 World Cup victory and the Indian hockey team to a bronze at the Paris Olympics, can't help but smile with pride as he discusses his most recent trainee, 18-year-old Gukesh, who made history as the youngest ever world champion by defeating the defending champion, Ding Liren. The name is Paddy Upton.