Perth: Australia Test batsman Adam Voges has suffered a concussion after being struck on the head by a bouncer today during a Sheffield Shield first-class match between Western Australia and Tasmania.



Voges was helped from the field by medical staff after being hit on the back of the head by a delivery from Tasmania fast bowler Cam Stevenson.



The 37-year-old fell to his knees as players rushed to his assistance.



It is the second concussion Voges has suffered this year.



He was struck on the head by a fielder's throw while playing for the English county Middlesex in May.



Voges will take no further part in the current four-day match and it is not clear whether he will be available for Australia's third Test against South Africa.