<p>Deemed too small for his school Gaelic football team at the age of fourteen, Rob Heffernan took up race walking on a whim. Driven by a fiercely competitive nature and a dogged desire to be the best, he strode his way to the pinnacle of the sport, winning bronze in the London 2012 Olympics and becoming world champion in Moscow in 2013. In 2016, he became the first athlete to represent Ireland at the Olympic Games for a fifth time. In this no-ho...