´óÏó´«Ã½

So what are the chances of Billy and his team mates repeating their now lengthy list of giant killings, and how do some teams manage to overcome the odds on the pitch?

We explore the psychological requirements to kill giants!

You will hear from former footballer Scott Barron - Billy's best man - who has tasted FA Cup glory and is now director of Refuel Performance management, but first, performance coach Jeremy Lazarus.

Photo: Bradford City's midfielder Filipe Morais celebrates scoring against Chelsea at Stamford Bridge (Credit: JUSTIN TALLIS Getty Images)