South Africa's powerful pack will be expected to lay the foundations when the Springboks face Italy in a crunch World Cup clash.
Rassie Erasmus is focusing on a "major forward battle" against Italy, but South Africa have lost utility back Jesse Kriel to injury.
South Africa scored nine tries but could have done better against Namibia, said boss Rassie Erasmus.
South Africa were expected to beat Namibia without any problems, and that was how it played out as Rassie Erasmus' side grabbed nine tries.
A much-changed South Africa will face Namibia as Rassie Erasmus' side look to kick-start their Rugby World Cup campaign.
Schalk Brits will start at number eight for a much-changed Springboks side against Namibia.
The Springboks called up Thomas Du Toit to replace the injured Trevor Nyakane at the Rugby World Cup.
New Zealand started their Rugby World Cup campaign impressively but Steve Hansen said: "There's plenty of stuff we can work on."
A penalty count heavily in their favour was key to securing New Zealand victory over South Africa, according to Rassie Erasmus.
Six minutes of first-half brilliance against South Africa underlined why New Zealand are Rugby World Cup favourites once again.
Kieran Read was delighted New Zealand took the opportunities presented to them by errors from South Africa in the Rugby World Cup opener.
South Africa started vibrantly but were put to the sword by New Zealand in an incredible first-half spell that changed the game.
Tom Brady knows a thing or two about winning and he is supporting South Africa at the Rugby World Cup.
Having been humbled by Japan in their 2015 Rugby World Cup opener, South Africa will be hoping for a much better start against New Zealand.
Kieran Read says New Zealand know exactly what to expect from South Africa in Saturday's huge showdown in Yokohama.
Springboks boss Rassie Erasmus has sought to put pressure on Rugby World Cup referee Jerome Garces, says New Zealand coach Steve Hansen.