Replacement scrum half Gareth Davies runs at the heart of the Springboks defence.
Warren Gatland is hoping his Welsh side will learn the lessons of their 38-16 defeat in Durban by the time they line-up in Nelspruit on Saturday for the second Test against the Springboks.
"We were outmuscled physically in the first half. The pace, intensity and physicality the Springboks came with in the first half we really struggled to cope with," admitted Gatland.
"We need to learn from today's game and tidy up some things for next week. If we can be more clinical then maybe the gap will be closer next week.
"I was a bit like the game against Australia two years ago. We didn't look fit enough out there in the first half.
"We got to grips with the pace of the game in the second half, but we are really disappointed. We have to look at that second half performance and we have to work hard on the breakdown and be more physical in the collision area.
"Because we were very poor in the first half we need to feel disappointed over the next 48-72 hours. But then we need to get back on the horse, work hard and be much better next weekend."
Wales skipper Alun Wyn Jones blamed his side's inability to take their chances in the early exchanges for a poor first-half performance.
"We had four opportunities in the first-half and we didn't complete them. They had two and took them both," said Jones.
"The damage was done in the first half - we were lacklustre in keeping the ball and we can't do that. When we did keep the ball we tested their defence."
Wales reached their first semi-final since 2013 in the opening round of this season's HSBC World Rugby Sevens Series in Dubai. WRU TV's Graeme Gillespie recaps on what proved to be an eventful tournament
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series