By Jamie Spencer Gareth Bale has admitted that Real Madrid’s relationship with the European Cup and Champions League is “hard to explain”, even after playing for the club for nine years. The Welsh forward made 258 appearances for Madrid, more than at any other single club in his career, and was a five-time Champions League winner during his time in the Spanish capital. On Saturday evening, Madrid are aiming for a milestone 15th European title to extend their own competition record – no other club has won more than seven and Los Blancos have collected that many in the first quarter of the 21st …