Bath
Benetton Treviso
Castres
Clermont Auvergne
Exeter Chiefs
Glasgow Warriors
Harlequins
La Rochelle
Leicester Tigers
Leinster
London Wasps
Montpellier
Munster
Northampton Saints
Ospreys
Racing CF
Saracens
Scarlets
Toulon
Ulster
Leone Nakarawa
Henry Chavancy
Yannick Nyanga
Devin Toner
Tadhg Furlong
Sean Cronin
Eddy Ben Arous
Cian Healy
James Ryan
Jack McGrath
Isikeli Nacewa
Tadhg Beirne
Conor Murray
Robbie Henshaw
Peter O'Mahony
Dave Kilcoyne
CJ Stander
Stephen Archer
Rory Scannell
Billy Holland
Mazine Machenaud
Ian Keatley
Simon Zebo
Gareth Davies
Luke McGrath
Ken Owens
Florian Fresia
Camille Chat
Wenceslas Lauret
Fergus McFaddon
Jack Conan
David Bulbring
Cedato Gomes Sa
Jack O'Donoghue
Owen Farrell
Morgan Parra
Jonathan Sexton
Alexi Bales
Teddy Thomas
Scott Fardy
Rhys Patchell
Makovina Vunipola
Chris Ashton
Dany Priso
Jean Kleyn
Fritz Lee
Alex Goode
Virimi Vakatawa
Alexandre Lapandry
Benjamin Kayser
Total = Total appearances,
Start = Total started,
CO = Came on,
Sub = Started as a sub,
Off = Taken off .