The Magpies were down by 21 points at half - time before coming back to win by five goals , keeping Geelong to one point in the third quarter .
Collingwood became the first and so far only team to win four consecutive flags .
The Collingwood were down by 21 points at half - time before coming back to win by five goals , keeping Geelong to one point in the third quarter .
Collingwood became the first and so far only team to win four consecutive flags .