Test batsman Adam Voges has sent a major scare through cricketing circles after copping a sickening blow to the head.

Voges was struck in the back of the helmet while attempting to evade a Cam Stevenson bouncer shortly before lunch on day one of Western Australia's Sheffield Shield clash with Tasmania at the WACA Ground.

The 37-year-old immediately dropped to his hands and knees after copping the blow, with players rushing to his aid.

Voges, who was on 16 at the time, received some medical treatment on the pitch, before being helped off the ground by two trainers.


Although he didn't need to go to hospital, he has been ruled out of the rest of the match with concussion.

It's the second serious concussion Voges has suffered this year. In May, Voges was struck in the back of the head in bizarre fashion while captaining English county side Middlesex.

On that occasion, Voges was struck by his own teammate after a boundary had been scored.

Ollie Rayner threw the ball back, but it sailed over the wicketkeeper's head and hit Voges.

Voges was taken to hospital in that instance.

He said he was groggy for about 10 days after that incident. "It felt like I was waking up with a hangover. It wasn't until 10 days after it that I started to feel right again," Voges said of that incident in July. Voges' latest head blow comes less than two years after Phillip Hughes died after being struck by a bouncer in similar fashion during a Sheffield Shield clash.