It is one of the biggest games in the 109-year history of Hull City.
A win at the KC Stadium on Saturday against Cardiff will secure the Tigers promotion to the Premier League and a record £100m windfall.
It would be only the second time City have played in the top flight of English football.
And to help back City's premier push, we have teamed up with Stagecoach to give away thousands of free A4-size cards in Friday's Mail for fans to take to the game or place in cars or windows.
Our double-sided quality cards in black and amber feature two of City's best known supporter slogans, "Come on you 'Ull" and "#UTT", which thousands of Twitter users use to mean "Up the Tigers".
So join in City's push for the premier league and pick up the Mail today for your free supporter's card.
In Hull members of Bricknell Primary School's boys and girls football squads showed their backing for the Tigers with their supporters' cards.
Lucas Deverell, 11, said: "I would love them to win, it would mean a lot to go back into the Premier League. I would like to see them smash Liverpool or Chelsea!"
Fellow pupil Leah Hartley, also 11, said: "I like the fact the Tigers will representing Hull and us in Premier League. I will watch their skills and try and improve my own when I play football"
Stagecoach commercial manager Jon Donnelly said: "I'll be at the KC on Saturday cheering City on and I hope fans can really make it a great atmosphere.
"These cards are a great way of showing your support."
