#4. Billy Vunipola
Age: 30
Position: Number 8
Caps: 64
Borthwick excluded Powerhouse No8 Vunipola from the Six Nations squad, opting for Alex Dombrandt from Harlequins and Sam Simmons from Exeter as specialists.
Vunipola made a return to the England squad last summer under Eddie Jones and played in the autumn Test series.
However, in Borthwick’s first selection, he made significant changes, resulting in Vunipola being among several experienced players left out.
With Zach Mercer set to return to England this summer, yet another recall for Billy, who is still recovering from a knee injury, is starting to look very unlikely.