Manchester City striker Sergio Aguero appeared to come through Argentina's World Cup qualifying clash with Paraguay unscathed, but had a night to forget in Cordoba.
Aguero said he would play for his country "at any cost'' after limping out of Saturday's 2-2 draw against Peru with an adductor injury and was named in Edgardo Bauza's starting XI but missed a penalty in a 1-0 defeat.
He played 90 minutes trouble free but will not remember the game fondly as his side were surprisingly defeated, which leaves their hopes of reaching Russia in 2018 far from assured.
To make matters worse Aguero, who was booked, wasted a chance to level from the spot when his casual effort was easily saved by Justo Villar while he also spurned a one-on-one opportunity and planted a free header straight at Villar.
City host Everton on Saturday aiming to bounce back from their first Premier League defeat under Pep Guardiola and will hope to have their main striker available.