Manu Samoa is expecting a backlash from South Africa following their shock loss to Japan at the World Cup.
The Boks have slipped to sixth in the world rankings - their lowest position since 2003 - off the back of the 34-32 defeat, with the Brave Blossoms up two spots to 11th.
The result has thrown Pool B wide open with Samoa atop the standings after their victory over the USA.
Coach Stephen Betham expects the wounded Springboks will be desperate to bounce back but says they're looking forward to the challenge.
"Oh we're going to give it everything. We know that there will probably be a backlash but we'll be ready for it. Tier one nations I think have gotten all a wake-up call from [Japan's victory] and simply put it our surprise factor is gone so they're going to come with all guns blazing".
Scotland are the only team in Pool B yet to begin their World Cup tournament - they face the in-form Japanese on Thursday morning.