Donegal football manager Jim McGuinness says they'll have to stop 'possibly the best player to ever play the game' if they're to win Sunday's All-Ireland final.
Two-time Footballer of the Year David Clifford has been in incredible form for Kerry, scoring 8 goals and 53 points on the Kingdom's run to the decider.
McGuinness says the Fossa forward will go down as an all-time great, and he's been impressed by Clifford's performances this summer:
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