Argentina thrashed Guinea 5-0 on Friday at the Under-20 World Cup in South Korea to knock the African side out of the tournament.
Guinea finish bottom of Group A having needed a win against Argentina to have any chance of progressing.
In the other Group A match England advanced to the last 16 with a 1-0 win over South Korea, who also go through.
Guinea earned their only point of the tournament with a 1-1 draw with England. on Tuesday.
They began their campaign with a 3-0 loss to hosts South Korea.
Marcelo Torres opened the scoring for Argentina after 33 minutes and Lautaro Martinez added a second just before half-time.
Matias Zaracho and Marco Senesi scored one each in the second half before Martinez completed the scoring.