Cape Town - SANZAR Duty Judicial Officer Paul Tully has accepted a guilty plea from Springbok prop Dean Greyling for contravening Law 10.4 (a) - punching or striking - after he was cited following the Rugby Championship clash between New Zealand and South Africa in Dunedin on Saturday. Greyling has been suspended from all forms of the game for two weeks up to and including September 30. The incident occurred in the 64th minute of the match, which the All Blacks won 21-11. In his finding Tully ruled that Greyling, whilst in the process of cleaning out at a ruck, recklessly used his forearm in such a manner that he made contact in a dangerous way with the head of New Zealand skipper Richie McCaw. Although there was no injury complaint, Tully felt the action had the potential to cause serious injury. Greyling was issued with a yellow card and subsequently cited and pleaded guilty to a breach of the law.