Akermanis brutally knocked out by former teammate

Jason Akermanis has been brutally knocked out by former teammate Chris Johnson during the EJ Whitten Legends Game.

Akermanis charged into Johnson, but mistimed his approach, copping a brutal head knock to the face.

While Johnson ran away from the clash showing no ill-effects, Akermanis was absolutely rocked and had to leave the game.

Previously he had been starring for the All Stars, with 20 disposals in the first half.

Take a look at the incident in the video above.