Following the two successive victories against Germany and Italy, Wales will be looking to make it a hat trick of wins at the Santboiana Stadium to come home with 9th place from the Women's Rugby World Cup in Barcelona.
With the Samoans expected to be their usual aggressive and physical selves,
Wales have selected their strongest available pack with Clare Donovan coming
in to the second row for April Dent who moves to No 8 with Jackie Morgan
reverting to the bench.
Ronnie Owens makes her first start of the tournament at scrum half with Cath
Walkley on the bench.
Having lost their opening game to Australia, the highest Wales can finish is
9th and victory tomorrow will ensure Wales return home with their highest ever finish in a World Cup.
It is the last game in charge for national coach John Williams and no doubt the girls will want his two years in charge to end on a high. The game kicks off at 5.30 (GMT)
1 Dawn Mason
2 Jamie Kift
3 Catrin Edwards
4 Claire Donovan
5 Liza Burgess
6 Kylie Wilson
7 Pip Minto
8 April Dent
9 Rhonnie Owens
10 Awen Thomas
11 Sue Jones
12 Melissa Berry CAPT
13 Louise Rickard
14 Clare Flowers
15 Kate Jones
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