Argentina have lost their second consecutive game on home soil in this year’s South American Under 17 Championship.
After losing to Ecuador on Tuesday, they were beaten this time by Paraguay.
Paraguay took the lead after 10 minutes through Arnaldo Sanabria.
Argentina immediately equalled the scores as Santiago Lopez netted in his own goal.
Sanabria added a second on the half hour mark before Alex Caceres scored a 90th minute winner.
Watch video highlights below.