Perth: Australia Test batsman Adam Voges has suffered a concussion after being struck on the head by a bouncer Wednesday 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.
Read also: Ranji Trophy: Kamat sparkles, match ends in a draw
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 to be held in Adelaide from November 24.
(With agency inputs)

Western Australia' Adam Voges sinks to his knees after being struck on the head by a bouncer from Cameron Stevenson during day one of the Sheffield Shield match against Tasmania at the WACA on in Perth Thursday. Getty Images