CAPE TOWN (Reuters) - Number eight Pierre Spies has been ruled out of South Africa's inaugural Rugby Championship match against Argentina on Saturday because of a finger injury that requires surgery.

Hanekom reminds me of the legendary Pierre Spies. The explosive powerful Bulls number eight is as powerful as he is passionate, as hard-working as he is skilled – he is the complete package.

The South African Rugby Union (SARU) confirmed on Tuesday the withdrawal of outstanding number eight Pierre Spies from their Rugby World Cup squad.

Wales assistant coach Neil Jenkins believes Jamie Roberts has a big Test future despite his hesitant debut at full-back against South Africa.

South Africa Springboks' Pierre Spies runs with the ball during their Rugby World Cup Pool D match against Namibia at North Harbour Stadium in Auckland September 22, 2011.