Eugene McGee: McGuinness and Horan -- young, gifted and driven
It is a contest that has the country in a state of excitement more usually associated with a match-up like last year's when great traditional rivals Dublin and Kerry clashed for the Sam Maguire Cup.
Donegal and Mayo have no great record of All-Ireland success, with Donegal winning just one in 1992 and Mayo three -- in 1936, '50 and '51. so, how can they overcome their lack of a winning tradition, something that is often touted as essential when you go to Croke Park on the big occasion?
The story of this dramatic reversal in fortunes has its origins in disastrous campaigns for both counties in 2010.