Here, we look at how deep Warren Gatland’s options run with four top-class starting XV’s if everyone is fit and available.
FULLBACK
First choice: Stuart Hogg (Scotland)
Second choice: Liam Williams (Wales)
Third choice: Elliot Daly (England)
Fourth choice: Leigh Halfpenny (Wales)
WING
First choice: Jonny May (England)
Second choice: Jacob Stockdale (Ireland)
Third choice: George North (Wales)
Fourth choice: Jack Nowell (England)
OUTSIDE-CENTRE
First choice: Jonathan Davies (Wales)
Second choice: Henry Slade (England)
Third choice: Garry Ringrose (Ireland)
Fourth choice: Rory Hutchinson (Scotland)
INSIDE-CENTRE
First choice: Manu Tuilagi (England)
Second choice: Robbie Henshaw (Ireland)
Third choice: Sam Johnson (Scotland)
Fourth choice: Nick Tompkins (Wales)
WING
First choice: Josh Adams (Wales)
Second choice: Joe Cokanasiga (England)
Third choice: Blair Kinghorn (Scotland)
Fourth choice: Keith Earls (Ireland)