The FA Cup is the world’s oldest football tournament and is still regarded by many as the best domestic cup competition on the planet. One of the greatest sights to see in the FA Cup is a giant-killing, when a smaller team triumphs against one of the best sides in the county. Ahead of this weekend’s third round, where the likes of Rochdale, Port Vale and Flyde will be looking to write their names into folklore, we’ve taken a look at some of the biggest FA Cup upsets of all time.