The FA Cup history books are littered with giant-killing tales, with the fabled ‘magic’ of the competition offering 15 minutes of fame to those unaccustomed to life under the spotlight.
Bradford City, as a club to have graced the Premier League, have tasted the high life, but theirs has been a rollercoaster existence.
Since competing in the top-flight, the Bantams have dropped as far as the fourth tier, before bouncing back up into League One.
While in the basement division, Phil Parkinson masterminded a remarkable run to the 2012/13 League Cup final – an adventure that was eventually ended by Swansea City at Wembley Stadium.
A number of notable scalps were secured along the way, with three Premier League sides sent packing, and the Bantams have been at it again in 2014/15.
Few gave them much of a chance as they prepared for an FA Cup fourth round clash with Chelsea, but the multi-millionaires of west London were humbled in their own backyard and Bradford marched on.
Sunderland are the next Goliaths to their David, and here we take a pictorial look at those games which should act as a warning to Gus Poyet’s Black Cats ahead of Sunday’s trip to Valley Parade.