Cobus Reinach will start at scrumhalf, with Jaden Hendrikse providing cover off the replacements’ bench, while Grant Williams shows his versatility by starting on the right wing. Faf de Klerk will provide flyhalf cover from the bench in a split of five forwards and three backs.

The only player in the starting XV that continues in the run-on team from last week’s 18-3 victory over Scotland in Marseille is utility back Damian Willemse, who switches from fullback to flyhalf.

“People were surprised when we picked four scrumhalves in the squad but we knew they offered us the skills and versatility to provide backline options to manage the challenges that tournament rugby gives you,” said Nienaber.

“They are all excellent scrumhalves, but Grant and Cobus can play wing and Faf has experience at No 10 – as do Cheslin and Willie. We have the same versatility among our forwards.

Andre Esterhuizen and Canan Moodie are reunited in the Bok midfield for this match.

“Grant played school rugby on the wing, and he has come on at wing before for us, so we are excited to give him this opportunity to start there and for him to gain international experience in the position.

“Faf is also one of our back up flyhalves in the squad, and the same applies to him, as it will be valuable for him and the team to get some game time in the position.

“We have been rotating and testing players in different positions since last season to put us in the fortunate position to have a group of 33 players in France that are closely matched in terms of their quality of play and skills, and who have been pushing one another for places in the last few months. It has allowed us to select a top-quality team for this match.”

The 14 other personnel changes in the starting team, see Canan Moodie (centre) and Jean Kleyn (lock) return after not being available for selection because of injury in game one. Moodie resumes his Twickenham midfield-partnership with the hard-running Andre Esterhuizen, while Kleyn partners Marvin Orie in the engine room.

Damian Willemse is the only player to earn a second consecutive start for the Boks.

The experienced Willie le Roux jumps from the bench to the starting lineup at fullback, while Makazole Mapimpi will accompany Williams on the wing.

Nienaber also named a quality forward pack with Ox Nche, Vincent Koch (both props) and Bongi Mbonambi (hooker) joining forces in the front row, and Marco van Staden, Kwagga Smith (both flankers) and Duane Vermeulen (No 8) forming a new loose trio.

Deon Fourie will serve as the back-up hooker on the bench, alongside a quality set of forwards in Steven Kitshoff, Trevor Nyakane (both props), RG Snyman (lock) and Jasper Wiese (No 8), while Jesse Kriel (centre) is the third back.

Nienaber added: “This squad includes several Rugby World Cup winners and some of the best young talent in the country and we are excited to see what they can do. Player management is vital as every game in the World Cup is essentially a play-off game, and it is important that our squad remains sharp and match fit throughout the competition.”

Nienaber expected their opponents to show real fight at Stade de Bordeaux: “Romania are a patriotic team and they will be playing for their country. It is a massive opportunity for them to play against us because such occasions are very rare, so they will give everything.

Marvin Orie and Jean Kleyn have been named in the engine room.

“They scored the first try in their opening match against Ireland, they showed real skill in a number of areas of their game, and they fought throughout the match, so we know what we are in for.

“Obviously from our perspective it is important to build momentum in our campaign and this match plays a vital role in our plans for the tournament, so it is important that we follow through with our plan in this match.”

The Springboks will have their last training session in Toulon on Thursday before settling in at their base in Bordeaux for Sunday’s the match.

The encounter kicks off at 15h00 on Sunday and will be broadcast live on SuperSport.

Springbok team to face Romania in Bordeaux:
15 – Willie le Roux (Vodacom Bulls) – 88 caps, 65 pts (13t)
14 – Grant Williams (Hollywoodbets Sharks) – 6 caps, 0 points
13 – Canan Moodie (Vodacom Bulls) – 8 caps, 20 pts (4t)
12 – Andre Esterhuizen (Harlequins) – 14 caps, 0 pts
11 – Makazole Mapimpi (Hollywoodbets Sharks) – 39 caps, 115 pts (23t)
10 – Damian Willemse (DHL Stormers) – 34 caps, 41 pts (3t, 4c, 4pg, 2dg)
9 – Cobus Reinach (Montpellier) – 27 caps, 45 pts (9t)

8 – Duane Vermeulen (SA Rugby) – 71 caps, 15 pts (3t)
7 – Kwagga Smith (Shizuoka Blue Revs) – 34 caps, 30 pts (6t)
6 – Marco van Staden (Vodacom Bulls) – 15 caps, 0 points
5 – Marvin Orie (DHL Stormers) – 14 caps, 0 pts
4 – Jean Kleyn (Munster) – 4 caps, 0 pts (Ireland 5 caps)
3 – Vincent Koch (Hollywoodbets Sharks) – 46 caps, 0 pts
2 – Bongi Mbonambi (captain, Hollywoodbets Sharks) – 63 caps, 65 points (13t)
1 – Ox Nche (Hollywoodbets Sharks) – 22 caps, 0 points

Replacements:
16 – Deon Fourie (DHL Stormers) – 7 caps, 0 pts
17 – Steven Kitshoff (Ulster) – 77 caps, 10 points (2t)
18 – Trevor Nyakane (Racing 92) – 63 caps, 5 points (1t)
19 – RG Snyman (Munster) – 29 caps, 5 points (1t)
20 – Jasper Wiese (Leicester Tigers) – 24 caps, 5 points (1t)
21 – Jaden Hendrikse (Hollywoodbets Sharks) – 13 caps, 12 pts (2t, 1c)
22 – Faf de Klerk (Canon Eagles) – 50 caps, 46 points (5t, 3c, 5pg)
23 – Jesse Kriel (Canon Eagles) – 63 caps, 70 points (14t)

Stats and facts:

Springbok record against Romania:
Played 1, Won 1. Points for: 21, Points against: 8. Tries scored: 2, Tries conceded: 1. Win %: 100%.

Milestones:

• Makazole Mapimpi will start at wing for the 39^th time in his Bok career, which will place him joint-fifth on the list of most Test starts at wing for the Springboks with Pieter Rossouw.
• This will be Vincent Koch’s first start for the Springboks since the RWC pool game against Canada on 8 October 2019. Since then, he has played off the bench in 28 Tests.
• Only one Springbok has scored a try against Romania – Adriaan Richter. The No 8 scored both the Boks’ tries in their RWC pool game against the Oaks in 1995, a match in which he captained South Africa.

Miscellaneous:

• The total Test caps for the Springbok starting line-up is 484.
• There are 216 caps in the backline, with 268 caps among the forwards. On the bench there are a further 326 caps.
• The average caps per player in the backline is 30, the forwards 33, while the players on the bench average 40.