Exeter Chiefs: 15 Jack Arnott, 14 Fetu'u Vainikolo, 13 Max Bodilly, 12 Adam Hughes, 11 Tom James, 10 Ceri Sweeney, 9 Dave Lewis, 1 Brett Sturgess, 2 Luke Cowan-Dickie, 3 Alex Brown, 4 Dean Mumm (capt), 5 Jerry Sexton, 6 James Scaysbrook, 7 Sam Simmonds, 8 Sam Skinnner.
Replacements: 16 Greg Bateman, 17 Carl Rimmer, 18 Jack Stanley, 19 Will Carrick-Smith, 20 Joel Conlon, 21 Stuart Townsend, 22 Laurence May, 23 Tom Hendrickson.
Gloucester: 15. Steve McColl; 14. Shane Monahan, 13. Billy Meakes, 12. Mark Atkinson, 11. Tom Isaacs; 10. Aled Thomas, 9. Dan Robson; 1. Yann Thomas, 2. Darren Dawidiuk, 3. Shaun Knight; 4. Elliott Stooke, 5. James Hudson (capt); 6. Ross Moriarty, 7. Dan Thomas, 8. Gareth Evans.
Replacements: 16. Aleki Lutui, 17. James Gibbons, 18. Sila Puafisi, 19. Tom Hicks, 20. Joe Batley, 21. Callum Braley, 22. Billy Burns, 23. Henry Purdy.
London Irish: 15. Topsy Ojo (Captain); 14. Guy Armitage; 13. Eamonn Sheridan; 12. Eoin Griffin; 11. Cameron Cowell; 10. Myles Dorrian; 9. Darren Allinson; 1. Jamie Hagan; 2. Jimmy Stevens; 3. Leo Halavatau; 4. Dave Lyons; 5. Kieran Low; 6. Luke Narraway; 7. Conor Gilsenan; 8. Jebb Sinclair.
Replacements: 16. Mike Mayhew; 17. Tom Smallbone; 18. Geoff Cross; 19. Dan Leo; 20. Ollie Curry; 21. Connor Murphy; 22. Ross Neal; 23. Harry Lightfoot-Brown.
Leicester Tigers: 15 Tommy Bell, 14 Miles Benjamin, 13 Matt Smith, 12 Javiah Pohe, 11 Adam Thompstone, 10 Oli Bryant, 9 Sam Harrison (C), 1 Tom Bristow
2 Jake Farnworth, 3 Tiziano Pasquali, 4 Harry Wells, 5 Sebastian De Chaves
6 Charlie Beckett, 7 Robert Barbieri, 8 Paul Grant.
Replacements: 16 Harry Thacker, 17 Riccardo Brugnara, 18 Fraser Balmain, 19 Joe Maksymiw, 20 Ed Milne, 21 David Mele, 22 Jack Roberts, 23 Charlie Thacker.
Northampton Saints: 15 Tom Collins, 14 Jamie Elliott, 13 Tom Stephenson, 12 Dom Waldouck, 11 Howard Packman, 10 Will Hooley, 9 Joel Hodgson, 1 Ethan Waller, 2 Mike Haywood, 3 Gareth Denman, 4 James Craig, 5 Christian Day, 6 Phil Dowson (capt), 7 Teimana Harrison, 8 Jon Fisher.
Replacements: 16 Ross McMillan, 17 Danny Hobbs-Awoyemi, 18 Tom Mercey, 19 Alex Woolford, 20 Ben Nutley, 21 Kahn Fotuali'i, 22 Harry Mallinder, 23 Josh Skelcey.
Newcastle: 15.Lee Smith, 14. Tom Catterick, 13. Danny Barnes, 12. Jamie Helleur, 11. Alesana Tuilagi, 10. Rory Clegg, 9. Mike Blair, 1. Rob Vickers, 2. Rob Hawkins, 3. Scott Wilson, 4. Calum Green, 5. Scott Macleod, 6. Dan Temm, (c) 7. Andy Saull, 8. Uili Kolo'ofai.
Replacements: 16. Scott Lawson, 17. Alex Rogers, 18. Oliver Tomaszczyk, 19. Sean Robinson, 20. Dom Barrow, 21. Andy Davies, 22. Juan Pablo Socino, 23. Simon Hammersley.
Saracens: 15. Ben Ransom; 14. Mike Ellery, 13. Nick Tomkins, 12. Duncan Taylor, 11. Catalin Fercu; 10. Nils Mordt, 9. Ben Spencer; 1. Rhys Gill, 2. Scott Spurling, 3. Juan Figallo; 4. Jim Hamilton, 5. Mouritz Botha, 6. Maro Itoje (Capt.), 7. Jacques Burger, 8. Ernst Joubert.
Replacements: 16. Brett Sharman, 17. Richard Barrington, 18. Biyi Alo, 19. Nick De Jager, 20. Matt Hankin, 21. Tom Whiteley, 22. Marcelo Bosch, 23. Jack Wilson.
Harlequins: 15. Ross Chisholm, 14. Charlie Walker, 13. George Lowe, 12. Jordan Turner-Hall, 11. Ollie Lindsay-Hague, 10. Louis Grimoldby, 9. Karl Dickson (C),
8. James Chisholm, 7. Luke Wallace, 6. Joe Trayfoot, 5. Sam Twomey, 4. George Merrick, 3. Will Collier, 2. Rob Buchanan, 1. Mark Lambert.
Replacements: 16. Dave Ward, 17. Darryl Marfo, 18. Kyle Sinckler, 19. Kieran Treadwell, 20. Henry Cheeseman, 21. Sam Stuart, 22. Tim Swiel, 23. Aseli Tikoirotuma.