Ospreys: 15 Jack Walsh, 14 Dan Kasende, 13 Evardi Boshoff, 12 Keiran Williams, 11 Keelan Giles, 10 Owen Williams, 9 Reuben Morgan-Williams, 8 Morgan Morris, 7 Justin Tipuric (captain), 6 James Ratti, 5 James Fender, 4 Will Spencer, 3 Tom Botha, 2 Lewis Lloyd, 1 Garyn Phillips.
Replacements: 16 Ethan Lewis, 17 Cam Jones, 18 Ben Warren, 19 Harri Deaves, 20 Morgan Morse, 21 Kieran Hardy, 22 Tom Florence, 23 Iestyn Hopkins.
Benetton: 15 Rhyno Smith, 14 Ignacio Mendy, 13 Malakai Fekitoa, 12 Marco Zanon, 11 Matt Gallagher, 10 Tomas Albornoz, 9 Andy Uren, 8 Toa Halafihi, 7 Siua Maile, 6 Alessandro Izekor, 5 Eli Snyman (captain), 4 Giulio Marini, 3 Enzo Avaca, 2 Agustin Creevy, 1 Thomas Gallo.
Replacements: 16 Bautista Bernasconi, 17 Nahuel Tetaz Chaparro, 18 Giosué Zilocchi, 19 Riccardo Favretto, 20 Simon Koroiyadi, 21 Lautaro Bazan Velez, 22 Giuliano Avaca, 23 Federico Zananadrea.
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Lions: 15 Quan Horn, 14 Richard Kriel, 13 Henco van Wyk, 12 Rynhardt Jonker, 11 Edwill van der Merwe, 10 Sam Francis, 9 Morne van den Berg, 8 Franke Horn, 7 Ruan Venter, 6 JC Pretorius, 5 Ruan Delport, 4 Etienne Oosthuizen, 3 Asenathi Ntlabakanye, 2 PJ Botha, 1 Juan Schoeman.
Replacements: 16 Jaco Visagie, 17 SJ Kotze, 18 RF Schoeman, 19 Raynard Roets, 20 WJ Steenkamp, 21 Nico Steyn, 22 Gianni Lombard, 23 Manuel Rass
Bulls: 15 Devon Williams, 14 Sebastian de Klerk, 13 David Kriel, 12 Harold Voster, 11 Sergeal Petersen, 10 Boeta Chamberlain, 9 Embrose Papier, 8 Cameron Hanekom, 7 Elrich Louw, 6 Marcell Coetzee, 5 Ruan Nortje (captain), 4 Cobus Wiese, 3 Wilco Louw, 2 Johan Grobbelaar, 1 Gerhard Steenekamp.
Replacements: 16 Akker van der Merwe, 17 Alulutho Tshakweni, 18 Francois Klopper, 19 Reinhardt Ludwig, 20 Nizaam Carr, 21 Keagan Johannes, 22 Canan Moodie, 23 Willie le Roux.
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Scarlets: 15 Ioan Nicholas, 14 Jac Davies, 13 Macs Page, 12 Johnny Williams, 11 Jeff Evans, 10 Ioan Lloyd, 9 Gareth Davies, 8 Vaea Fifita, 7 Josh Macleod (c), 6 Max Douglas, 5 Sam Lousi, 4 Alex Craig, 3 Archer Holz, 2 Marnus van der Merwe, Alec Hepburn,
Replacements: 16 Shaun Evans, 17 Sam O’Connor, 18 Gabe Hawley, 19 Jac Price, 20 Taine Plumtree, 21 Efan Jones, 22 Charlie Titcombe, 23 Jarrod Taylor
Edinburgh Rugby: 15 Wes Goosen, 14 Harry Paterson, 13 Matt Currie, 12 James Lang, 11 Lewis Wells, 10 Ben Healy, 9 Ali Price, 8 Tom Dodd, 7 Hamish Watson, 6 Liam McConnell, 5 Sam Skinner (c), 4 Glen Young, 3 Paul Hill, 2 Paddy Harrison, 1 Boan Venter,
Replacements: Harri Morris, Robin Hislop, Javan Sebastian, Rob Carmichael, Tom Currie, Ben Vellacott, Ross Thompson, Mosese Tuipulotu
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Leinster: 15 Henry McErlean, 14 Andrew Osborne, 13 Liam Turner, 12 Jordie Barrett, 11 James Lowe, 10 Ross Byrne, 9 Luke McGrath; 8 Max Deegan, 7 Scott Penny. 6 Alex Soroka 5 Brian Deeny. 4 RG Snyman, 3 Rabah Slimani, 2 Dan Sheehan (c). Jack Boyle
Replacements: 16 John McKee. 17 Paddy McCarthy, 18 Rory McGuire, 19 Diarmuid Mangan, 20 James Culhane, 21 Will Connors, 22 Cormac Foley, 23 Charlie Tector
Stormers: 15 Warrick Gelant, 14 Ben Loader, 13 Ruhan Nel, 12 Jonathan Roche, 11 Leolin Zas, 10 Manie Libbok, 9 Paul de Wet, 8 Evan Roos, 7 Ben-Jason Dixon, 6 Deon Fourie (captain), 5 Ruben van Heerden, 4 JD Schickerling, 3 Neethling Fouché, 2 Joseph Dweba, 1 Ali Vermaak.
Replacements: 16 André-Hugo Venter, 17 Brok Harris, 18 Frans Malherbe, 19 Salmaan Moerat, 20 Marcel Theunissen, 21 Paul de Villiers, 22 Herschel Jantjies, 23 Wandisile Simelane.
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Cardiff : 15 Cam Winnett, 14 Gabriel Hamer-Webb, 13 Rey Lee-Lo, 12 Rory Jennings, 11 Tom Bowen, 10 Callum Sheedy, 9 Johan Mulder, 8 Alun Lawrence. 7 Thomas Young, 6 Alex Mann, 5 Seb Davies, 4 Josh McNally (c), 3 Rhys Litterick, 2 Daf Hughes, 1 Thys Barratt,
Replacements: 16 Efan Daniel, 17 Danny Southworth, 18 Will Davies-King, 19 Rory Thornton, 20 Mackenzie Martin, 21 Ethan Lloyd, 22 Jacob Beetham, 23 Regan Grace
Sharks : 15 Jordan Hendrikse, 14 Yaw Penxe, 13 Jurenzo Julius, 12 Ethan Hooker, 11 Makazole Mapimpi, 10 Siya Masuku, 9 Grant Williams, 8 Nick Hatton, 7 Emmanuel Tshituka, 6 Phepsi Buthelezi, 5 Jason Jenkins, 4 Vincent Tshituka (c), 3 Trevor Nyakane, 2 Bongi Mbonambi, 1 Ntuthuko Mchunu,
Replacements: 16 Ethan Bester, 17 Ruan Dreyer, 18 Vincent Koch, 19 Deon Slabbert,20 Lappies Labuschagne, 21 Jaden Hendrikse, 22 Francois Venter, 23 Lukhanyo Am
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Dragons RFC: 15 Huw Anderson, 14 Rio Dyer, 13 Aneurin Owen (c), 12 Harri Ackerman, 11 Jared Rosser, 10 Lloyd Evans, 9 Morgan Lloyd, 8 Taine Basham, 7 Dan Lydiate, 6 Shane Lewis-Hughes, 5 Ryan Woodman, 4 Joe Davies,3 Chris Coleman, 2 Brodie Coghlan, 1 Rodrigo Martinez, , , ,
Replacements: 16 James Benjamin, 17 Dylan Kelleher-Griffiths, 18 Paula Latu, 19 Barny Langton-Cryer, 20 George Young, 21 Dane Blacker, 22 Will Reed, 23 Harry Wilson
Munster: 15 Ben O’Connor, 14 Diarmuid Kilgallen, 13 Tom Farrell, 12 Rory Scannell, 11 Shane Daly, 10 Billy Burns, 9 Ethan Coughlan, 8 Gavin Coombes, 7 Alex Kendellen, 6 Jack O’Donoghue (c), 5 Tom Ahern. 4 Fineen Wycherley, 3 Oli Jager, 2 Diarmuid Barron, 1 Dian Bleuler
Replacements: 16 Danny Sheahan,17 Kieran Ryan, 18 John Ryan, 19 Evan O’Connell, 20 Brian Gleeson, 22 Paddy Patterson, 22 Tony Butler, 26 John Hodnett
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Glasgow Warriors: 15 Josh McKay, 14 Sebastian Cancelliere, 13 Ollie Smith, 12 Duncan Munn, 11 Facundo Cordero, 10 Duncan Weir (c), 9 Ben Afshar, 8 Jack Mannm 7 Henco Venter, 6 Ally Miller, 5 Alex Samuel, 4 Euan Ferrie, 3 Fin Richardson, 2 Johnny Matthews, 1 Patrick Schickerling, ,
Replacements: 16 Grant Stewart, 17 Nathan McBeth, 18 Sam Talakai, 19 Macenzzie Duncan, 20 Joe Roberts, 21 Angus Fraser, 22 Sean Kennedy, 23 Kerr Johnston
Connacht: 15 Santiago Cordero, 14 Chay Mullins, 13 Piers O’Conor, 12 David Hawkshaw, 11 Byron Ralston,10 JJ Hanrahan, 9 Caolin Blade, 8 Sean Jansen, 7 Shamus Hurley-Langton, 6 Josh Murphy, 5 Joe Joyce (c), 4 David O’Connor, 3 Jack Aungier, 2 Dave Heffernan, 1 Peter Dooley
Replacements: 16 Dylan Tierney-Martin, 17 Jordan Duggan, 18 Sam Illo, 19 Oisin Dowling, 20 Paul Boyle, 21 Matthew Devine, 22 Jack Carty, 23 Finn Treacy
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Ulster: 15 Stewart Moore, 14 Michael Lowry, 13 Ben Carson, 12 Jude Postlethwaite, 11 Zac Ward, 10 Jack Murphy, 6 John Cooney, 8 David McCann, 7 Nick Timoney (c), 6 Lorcan McLoughlin. 5 Kier an Treadwell, 4 Harry Sheridan, 3 Scott Wilson, 2 Tom Stewart, 1 Eric O’Sullivan,
Replacements: 16 John Andrew, 17 Callum Reid, 18 Corrie Barrett, 19 Alan O’Connor, 20 Matty Rea, 21 Nathan Doak, 22 Jake Flannery, 23 Rob Lyttle
Zebre Parma: 15 Giacomo Da Re, 14 Alessandro Gesi, 13 Fetuli Paea, 12 Damiano Mazza, 11 Scott Gregory, 10 Giovanni Montemauri, 9 Gonzalo Garcia, 8 Giovani Licata, 7 Bautista Stavile, 6 Rusiate Nasove, 5 Leonard Krumov, 4 Matteo Canali, 3 Muhamed Hasa, 2 Luca Bigi (c), 1 Paolo Buonfiglio,
Replacements: 16 Giovanni Quattrini,17 Luca Franceschetto, 18 Juan Pitinari, 19 Giacomo Ferrari, 20 Luca Andreani, 21 Thomas Dominguez, 22 Luca Morisi, 23 Simone Brisighella