The recruit on the west coast, Zac Langdon, faces a race against the time pre-season derby after a serious collision with Fremantle captain Nat Fyfe today

Fyfe and Langdon’s heads collided at full speed, with Fyfe remarkably looking largely untouched, while Langdon showed significantly less wear and tear

The game was interrupted for a long time while the former giant was helped off the field on the stretcher

According to new concussion protocols, players must have a mandatory 12-day period on the sidelines

after a head blow

Fyfe received a free kick after the collision, much to the confusion of retired Prime Minister Will Schofield

On a positive note, Langdon flicked a thumb up as he left the field to warm the applause of the crowd

The little striker scored 23 goals in 31 games for the Giants before being sent to the West Coast against pick 54 last year

It was an unforgettable day for two former GWS representatives City rival Rory Lobb was also injured in the opening quarter

Lobb was crushed in a Tom Cole machine and received immediate medical attention on his right knee

The 28-year-old played no further role in the game after the blow, which appears to have had an effect on his central ligament due to the horizontal movement upon impact

Lobb was brought straight into the rooms with his knees and ankles. Soon he returned to the bench with ice on his knee

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World news – AU – Brutal blow: Eagles recruit KO in a battle of heads