Jim McGuinness: Killarney humiliation was 'the day that Tyrone won the All-Ireland'

“I would suggest that the reason they're standing there today as All-Ireland champions is that game had a big bearing in shaping the mindset that’s required. "

Tyrone goalkeeper Niall Morgan celebrates

Jim McGuinness believes Tyrone’s humiliating 6-15 to 1-14 defeat to Kerry in the Allianz League last May was "probably the day that won the All-Ireland"

The former All-Ireland winning manager recalled a similar experience that laid the foundation stone for Donegal's famous victory over Mayo in 2012.