<Tr> <Td> 27 August </Td> <Td> Dublin v Tyrone </Td> <Td> RTÉ & Sky Sports </Td> </Tr> <Tr> <Th_colspan="3"> All - Ireland Football Final </Th> </Tr> <Tr> <Td> 17 September </Td> <Td> Dublin v Mayo </Td> <Td> RTÉ & Sky Sports </Td> </Tr> <P> The two teams who won the semi-finals in the previous year are given byes to this year's semi-finals . </P>

How many teams left in all ireland football championship
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