West Coast speedster Jack Petruccelle may come under the scrutiny of the Match Review Officer for this accidental collision with Fremantle ruckman Sean Darcy.

The incident occurred late in the opening term, when the Docker big man charged in for a ground ball get deep in the defence, going to ground in the process.

Eagle Jack Petruccelle, en route to meeting him head-on, remains upstanding and braces for contact, a split-second call that led to a dangerous head-to-hip clash at high speed, and may require further investigation at the MRO.

Sean Darcy played out the remainder of the match, finishing with 12 touches at 48 hit-outs in the 35-point win.

This will significantly assist Petruccelle's case and may warrant a deeper look at Fremantle's handling of the incident, Darcy being shaken up from the immediate impact and clear whiplash.

Days after Brisbane's $40,000 penalty for concussion mismanagement, the AFL is under glaring pressure to maintain their ongoing stance and reaction to substantial head knocks.

Last week was a breaking point for the league and it's clubs' handling of the issue, Adelaide, Carlton and Brisbane all coming into questioning for their treatment of star players following brutal collisions.

Petruccelle will learn his fate tonight.