'Holy hell': AFL fans shocked by 'sickening' incident

A frightening incident in Sunday’s AFL clash between North Melbourne and St Kilda left fans holding their collective breath.

Kangaroos recruit Josh Walker has been ruled out for the rest of Sunday's AFL clash with St Kilda after he hurt his neck in a heavy fall.

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Walker flew for a mark over Saints forward Tim Membrey during the first quarter at Marvel Stadium and was knocked off balance, landing on his back and neck at an awkward angle.

Play was stopped for several minutes as the defender was assessed by medical staff.

Viewers initially feared Walker may have done serious damage, such was the frightening nature of the fall.

Concern for the North Melbourne star began pouring in on social media.

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The Kangaroos confirmed before quarter-time that the former Geelong and Brisbane key-position player would be sidelined for the rest of the match.

Josh Walker played no further part in the match after a sickening fall on his neck. Pic: Fox Sports/Getty

Despite the horrific nature of the incident, he was able to walk off the ground without the need for a stretcher.

Viewers were stunned by the toughness the Roos recruit displayed in the wake of what was a match-ending incident.

In a further positive sign, Walker was up and about at the quarter-time huddle, walking around and talking to teammates.

The Saints' Ben Long also appears unlikely to take further part in the game after hurting his right ankle early in the second quarter.

Long rolled the ankle outwards and was helped off the field before heading straight to the rooms.

He did not reappear before halftime.

St Kilda took a 29-point lead into the main break with debutant Max King among their goal kickers.

A sea-sawing final two terms witnessed multiple lead changes, with only a kick separating the two teams in the final quarter.

However, it was the Kangaroos that were able to hold on for a thrilling 8.8 (56) to 7.12 (54) win.

With Yahoo Sport Staff