Earlier, NAIJ.com had reported how Argentina FA made it clear that they will not give any player the No 10 jersey in their hopes of convincing Barcelona superstar Lionel Messi to make a return to global duty.
The central defender rose at the near post to beat Argentina keeper Sergio Romero to a Neymar corner and head home the victor, deciding a game that was set to go to penalties to determine the outcome.
"I am very happy, first, to help my team-mates, and to make a goal against Argentina is exciting and rewarding", the 34-year-old said.
Pep Guardiola's side play Burnley on the weekend and have key fixtures against Tottenham Hotspur on October 29 and Manchester United on November 11, with both matches live on Sky Sports.
And as the match entered added time, it felt like a goal from Brazil was still possibly coming.
"It's always hard, but our team is better than theirs because we've had the same foundations for many years while they're in the process of a drastic renovation", Brazil's full-back Felipe Luis told TV Globo. "But I think we deserved to win".
This will be Luis Scaloni's toughest test yet since taking over as Argentina's caretaker boss, and the manager will be without Messi, who has not featured for his country since the tournament in Russian Federation.
It extends Brazil's run to four wins in four games since they were knocked out the World Cup in the quarterfinals by Belgium.