NEWPORT Gwent Dragons centre Tyler Morgan has been released from the Wales squad due to a hamstring injury.

Wales have called Cardiff Blues duo Cory Allen and Tomos Williams into their 2016 Under Armour Series squad as replacements.

Uncapped scrum-half Williams is called in as cover following Rhys Webb’s injury against Australia on Saturday.

Speaking at today's press conference, defence coach Shaun Edwards said Webb has "no chance" of being involved against Argentina this Saturday.

However, Sam Warburton, Liam Williams, Jake Ball and Jonathan Davies are all expected to be available for selection.

It's not clear yet whether Alun Wyn Jones will make himself available for selection following the death of his father last week.