Wales U20 centre Steff Emanuel will switch to the No 10 jersey for table-topping Cardiff in their home Super Rygbi Cymru quarter final against Bridgend.

The former Millfield School star is one of three current U20 caps to appear in the Cardiff back division, along with Elijah Evans and Tom Bowen, while Wales U18 international Lloyd Lucas is among the replacements.

The battle for the inaugural Super Rygbi Cymru title is down to the wire with this weekend’s quarter finals promising a feast of top-quality action. 

As well as Cardiff welcoming Bridgend to the Arms Park, second place Ebbw Vale host wild card victors, Carmarthen Quins. 

Third place Newport entertain Aberavon at Newport Stadium, while last year’s Indigo Premiership champions Llandovery, who finished fourth, will be hoping to stay on track to win more silverware by overcoming Pontypool at Church Bank.

Bridgend have Ospreys players Tom Florence and Lewis Jones in their starting XV as they seek to upset the odds at the Arms Park. 

Full back Edd Howley, centre Ryan Wilkins, outside half Ben Burnell, hooker Evan Yardley and flanker Zac O’Driscoll will all be playing against their former club.

Newport have Dai Richards and Lewis Lloyd fully fit to start against Aberavon at Newport Stadium, while Jac Lloyd continues at No 10 in the absence of the injured Matt O’Brien. Wales U20 full back Scott Delnevo starts for the Wizards, with his U20 international colleague Saul Hurley on the bench.

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Llandovery have Scarlets locks Morgan Jones and Ed Scragg packing down together in their boiler house, while former Wales U20 full back Jac Davies is another regional player in their starting XV to face Pontypool. 

The Drovers are seeking to match their league and cup double triumph of last season having already secured the SRC Cup.

Their side to face Pooler shows only two changes in personnel from the side that beat Ebbw Vale to the first major trophy of the season. 

The visitors will have centre Pat Lewis hoping to mark his 100th game for the Gwent outfit with a win, while outside half Kieron Meek will be seeking to celebrate his call-up to play for the Barbarians later this month.

Ebbw Vale won’t have Wales U20 wing Harry Rees-Weldon available to play for them at Eugene Cross Park against wild card winners Carmarthen Quins after he was called up to the Dragons squad to travel to South Africa. 

Ewan Bowden takes his place, while Canadian international Sion Parry features in the back row.

The Quins show only one change from the starting line-up in north Wales last weekend when they beat RGC at Parc Eirias to reach the quarter finals. 

That is at centre, where Ryan Davies takes over from Osian Jones.

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QF1: CARDIFF v BRIDGEND – Arms Park (2.30pm)
Cardiff: Matty Young; Tom Bowen, Elijah Evans, Jason Harries, Dewi Cross; Steff Emanuel, Ethan Lloyd; Marc Thomas, Alun Rees, Tom Harper, Ethan Phillips, Sean Moore (captain), Aled Ward, Nathan Hudd, Lucas de la Rua

Reps: Gavin Parry, Cam Tyler-Grocott, Christian Brooke, Evan Rees, Benji Williams, Joe Williams, Lloyd Lucas, Joe Goodchild

Bridgend: Edd Howley; Cameron Ellis, Ryan Wilkins, Tom Florence, Mccauley Rowley; Ben Burnell, Chris Williams; Harry Olding, Evan Yardley, Matholwch Iorwerth Scott, Lewis Jones, Dylan Burrows, Alfie Llewellyn, Zac O’Driscoll (captain), Thomas Jevons

Reps: Corey Lewis, Alex George, Liam Tobias, Daniel Bartlett, Kyle Harris, Harvey Nash, Jake Thomas, Luke Price

QF2: NEWPORT V ABERAVON – Newport Stadium (2.30pm)
Newport: Carwyn Penny; Iestyn Galton, Dai Richards, Chay Foster-Smith, Lloyd Lewis; Jac Lloyd, Dafydd Buckland; Tom Devine, Tyler Olding, Garin Harris, Josh Skinner, Max Williams, George Young, Kyle Tayler, Ben Roach (captain)

Reps: Aneurin Jenkins, Tom Workman, Ollie Drake, Morgan Burgess, Josh Reid, Luke Crane, Elliot Frewen, Barney Nightingale

Aberavon: Scott Delnevo; Cori Lewis-Jenkins, Bradley Roderick, Joe Gage (captain), Felix Gilbert; Ed Dunford, Elis Horgan; Jordan Walters, Luke Davies, Geraint James, Ross Fox, Shay Smallman, Rhys Thomas, Ben Gregory, Gwilym Evans

Reps: Scott Whitlock, Charlie Thomas, Frankie Jones, Saul Hurley, Charlie Herdman, Morgan James, Ashton Evans, Tom Mably

QF3: LLANDOVERY v PONTYPOOL (Church Bank, 5.15pm)
Llandovery: Jac Davies; Harri Doel, Adam Warren, Rhodri Jones, Llien Morgan; Ioan Hughes, Lee Rees (captain); Jamie Hughes, Taylor Davies, Berian Watkins, ⁠Morgan Jones, ⁠Ed Scragg, Osian Davies, Stuart Worrall, Joe Powell

Reps: Garan Williams, Dino Dallavalle, Ben Leung, Nathan Hart, Evan Sheldon, Ilan Phillips, Jack Maynard, George Macdonald

Pontypool: Harry Jarvis; Ioan Duggan, Pat Lewis, Joel Mahoney, Marcus Jones; Harri Ford, Morgan Lloyd; George Tuckley, Evan Wood, Kelvyn Williams, Ieuan Jones, Mike Hill, Scott Matthews, Mike Herbert (captain), Morgan Allen

Reps: Connor Chapman, Kian Best, Harry Drane, Lewis Robey, Ryan Jones, Rhodri Cole, Jordan Thomas, Callum Davies

QF4: EBBW VALE v CARMARTHEN QUINS (Eugene Cross Park – 7.30pm)
Ebbw Vale: Matt Jones; Ewan Bowden, Ethan Phillips, Cam Davies, Ryan Gardner; Evan Lloyd, Gruff Tough; Luke Garrett, Joe Franchi (captain), Adam Williams, Dylan Bartlett, Curtis Gregory, Jack Pope, Sion Parry, Ryan Jenkins

Reps: TBC
Carmarthen Quins: Eilir George; Louis Rees, Jac Howells, Ryan Davies, Dylan Richards; Ifan Davies, Lucca Setaro; Rhys Fawcett, Lewis Morgan, Connor Allen, Lee Taylor (captain), Josh Helps, Iestyn Wood, Keanu Evans, Lewys Millin

Reps: James Newnian, Sion Jones, Ifan James, Ryan Bean, Ioan Dillon, Osian Jones, Elis Thomas, Callum Woolley