Rugby - Australia lock Arnold to miss opening match of Ireland series

Rugby Union Britain - Argentina v Australia - Rugby Championship - Twickenham Stadium, London, England - 8/10/16 Argentina's Agustin Creevy in action with Australia's Dean Mumm and Rory Arnold Action Images via Reuters / Henry Browne Livepic

CAPE TOWN (Reuters) - Brumbies lock Rory Arnold will miss Australia's first test against Ireland as he has been suspended for three weeks after being shown a red card in Saturday’s 42-24 Super Rugby loss to the Lions, officials said on Sunday.

Arnold, who had already spent 10 minutes in the sin-bin in the first half, was shown a straight red card for a dangerously high tackle on Lions flyhalf Elton Jantjies.