Jenkins has recalled three internationals in Stephen Jones, Guy Easterby and Simon Easterby alongside Martyn Madden and Neil Boobyer in five changes to the side that beat Glasgow in the Welsh/Scottish league last weekend.
Gareth Bowen and Dwayne Peel will provide cover for halfbacks Jones and Easterby from the bench. Former U21 centre Tal Selley misses out at centre as Boobyer returns to fitness, Simon Easterby is preferred to Ian Boobyer in the back row and Madden comes in for Phil Booth at prop.
But Jenkins is still wary of being hit by injuries before the Sunday
fixture, "We've talked long and hard about the side we wanted to select," he said.
"But there may be changes because we haven't been able to run with that side in any session this week.
"There are niggles and bumps but we have to be positive and if those boys are available then they will be there.
"Our selection identifies the type of game we are expecting from Leicester. They have a huge physical presence up front with a huge pack and we think they are going to come with a mentality take us on as an eight up front.
"That will certainly be the case for the first 30 minutes of the game and
our selection reflects that judgement. But we have physical presence in our own back row selection with Easterby, Hodges and Quinnell and that will be vital.
"If we going to win have to nullify the intensity that Leicester will want
to bring to early exchanges of the game and hopefully we have selected the players to do that."
Llanelli: G Evans; M Jones, N Boobyer, L Davies, S Finau; S Jones, G Easterby; M Madden, R McBryde, J Davies, V Cooper, C Wyatt, D Hodges, S Easterby, S Quinnell (Capt)
Replacements: P Booth, M Thomas, L Gross, I Boobyer, D Peel, G Bowen, W Proctor
Leicester: T Stimpson, G Murphy, O Smith, R Kafer, F Tuilagi, O Healey, H Ellis, G Rowntree, D West, D Garforth, M Johnson , B Kay, L Moody, N Back, M Corry
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