North Melbourne interchange infringement costs Kangaroos victory against Sydney in last minute of game

North Melbourne were an interchange blunder away from an emotional victory. (Getty Images: Daniel Pockett)

A rare interchange infringement by North Melbourne in the final minute has handed Sydney the opportunity to snatch victory in their round 10 clash.

North Melbourne led by three points as the time remaining ticked below a minute, when a stoppage was forced deep inside Sydney's attacking 50.