#4. Johnny Sexton (Ireland)
The Ireland captain is perhaps the most high profile expected omission of all, with Finn Russell currently just ahead of him for the third outside-half spot behind Owen Farrell and Dan Biggar. The Ireland captain has been absent for nearly a month, having sustained his latest head injury in the Heineken Champions Cup quarter-final win over Exeter Chiefs.
Outside-halves to make the squad: Owen Farrell (1/20), Dan Biggar (1/3), Finn Russell (1/2)