Note: Ages, caps and clubs are as per 9 June, the first test match of the tour.

On 8 May, head coach Warren Gatland named a 31-man squad for the 2018 Summer Internationals.

[4] Coaching team: Argentina 30-man squad for their 2018 June rugby union tests against Wales and Scotland.

[5] Coaching team: Note: Flags indicate national union for the club/province as defined by World Rugby.

Man of the Match: Ellis Jenkins (Wales) Touch judges: Alexandre Ruiz (France) Frank Murphy (Ireland) Television match official: David Grashoff (England) Notes: Man of the Match: James Davies (Wales) Touch judges: Jaco Peyper (South Africa) Mathieu Raynal (France) Television match official: Marius Jonker (South Africa) Notes: Touch judges: Mathieu Raynal (France) Andrew Brace (Ireland) Television match official: Marius Jonker (South Africa) Notes: