Mark Cavendish is a record - breaking road race winner . `` Since I was a little kid , I was competitive with everything . The British sprinter says he always had to look at everything , even as a child . Cavendish also trains his athletes regularly with Sudoku puzzles . A photographic memory helps him remember ` ` every second '' in each circuit .
Mark Cavendish is a record - breaking road race winner . The British sprinter says he always had to look at everything , even as a child . Cavendish also trains his athletes regularly with Sudoku puzzles . A photographic memory helps him remember ` ` every second '' in each circuit .