Jorge Sampaoli has described his appointment as a dream job, and it means he will finally have the opportunity to coach his country.
A statement from Seville says the Argentina FA had agreed to pay the release clause for the former Chile coach and he will be officially announced on Thursday, June 1.
"Sevilla FC and the Argentine Football Association (AFA) have reached a principle of agreement for the untying of coach Jorge Sampaoli as coach of the entity of Nervión to be able to exercise as coach of Argentina".
Assuming everything goes to plan, Santa Fe-native Sampaoli will seal his return to global management just a year after leaving his post in charge of Chile.
He will replace, Edgardo Bauza who resigned last month after just eight months in charge.
Argentina, fifth in their South American qualifying group for the World Cup, resume their qualifying campaign at Uruguay on August 31.
He steered the club to the last 16 of the Champions League for the first time since 2010, but they went out to surprise English champions Leicester City 3-2 on aggregate after failing to take their chances in a one-sided first leg.
The AFA named a squad for June friendlies against Brazil and Singapore this month that was widely felt to bear Sampaoli's prints, with Inter striker Mauro Icardi recalled as Manchester City striker Sergio Aguero missed out.
La Albiceleste lie fifth, outside the automatic qualification places and occupying the inter-confederation play-off spot with four matches remaining.