Argentina head coach Lionel Scaloni voiced concerns about the physical condition of his players while highlighting the importance of Lionel Messi after La Albiceleste booked their spot in the Copa America quarter-finals.
Papu Gomez was the hero for Argentina, with his 10th-minute goal sealing a 1-0 win over Paraguay on Monday.
There was no rest for superstar captain Messi, who equalled Javier Mascherano's record for most Argentina appearances with his 147th cap, despite Scaloni's men backing up from Friday's success against Uruguay.
The six-time Ballon d'Or winner had the most shots (three) and shots on target (two) among his team-mates as Argentina extended their unbeaten streak to 16 matches, dating back to 2019.
"The reality is that Messi has been playing every game and it is very difficult not to count on him, even though he is tired he continues to make the difference," said Scaloni.