The Pumas visit Twickenham on November 9 to take on England but will arrive without Phelan after he resigned on Monday
Santiago Phelan has quit as the coach of Argentina’s national rugby team, which just completed its second winless season in the four-nation Rugby Championship.
The Argentina Rugby Union announced the resignation on Monday but gave no reasons for his departure.
Argentina joined the Rugby Championship in 2012 and managed only a draw in six home-and-away matches against New Zealand, Australia and South Africa. This season the team lost all six matches, but went close to scoring upsets at home against No. 2-ranked South Africa and in Perth against Australia.
Argentina — known as the Pumas — is trying to upgrade its rugby profile but has struggled to compete consistently against three of the game’s best national teams.
The Argentina Rugby Union was expected to name a replacement as soon as Tuesday.