Many sportsmen swear by avoiding sex before a big event to keep their strength for the battle ahead. Not Andy Murray. The British tennis player says he plays so often that abstaining before matches would means he was always saying no. At least the world No 4 is free to make his own decisions, unlike the German football team who were banned by then manager Berti Vogts from having sex before games at the World Cup. In contrast at the last World Cup in South Africa, the Argentinian and Brazilian teams were actually encouraged to spend time with their partners. Legendary footballer George Best, however, had no problem bedding women the night before big games.