The free agency and trade periods commenced in late September with the trade period following the free agency. The trade period ended October 12 and there was plenty of activity. Port Adelaide's Karl Amon officially became a Hawk on a four year deal. Port will receive a second round draft selection as compensation.
The Collingwood Magpies delivered the Fremantle Dockers a lesson in wet weather football at Optus Stadium. It is the second week in a row the Dockers have floundered in rain and raises questions as to whether their high-pace, high-skill game can be adapted to wet and slippery conditions. The Magpies played traditional wet weather football where they gained territory at all costs, whether it was by kicking the ball forward along the ground or simply just knocking it forward with a fist. The Dockers played their high possession game, which fell apart with skill errors in the conditions and gifted Collingwood several goals through sloppy turnovers.
The first quarter was even with both teams booting two goals in the sodden conditions. Darcy Cameron took a solid wet-weather mark after using strength on Sean Darcy to boot the Pies' first goal. At the other end Rory Lobb kicked truly after being awarded a free kick for having his arms chopped in a marking (catching) contest. Sam Switkowski put the Dockers in front with a clever shot from the boundary line, before Brody Mihocek soccered a goal from close range for the Magpies, after a quick transition from defense.