LEWIS HAMILTON’S former trainer has revealed what the biggest challenge of training the Formula One great was. He said: “You try and get the best out of the time you have, and that’s the case for training any athlete. “The racing schedule is so demanding, and the biggest challenge is weaving training into that schedule. “The training can’t hurt the athlete or stress them too much. You learn a lot about the athletes you’re training as you spend time with them. Vierula, who now trains Hamilton’s former team-mate Valtteri Bottas, previously revealed the type of training they got up to.

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