Peru end Brazil's 17-match unbeaten run with a 1-0 friendly win in Los Angeles.
Tottenham Hotspur midfielder Giovani Lo Celso will be out until the end of October with a hip injury sustained playing for Argentina.
Brown scored Argentina's opening goal in their win against West Germany in the 1986 World Cup final.
Argentina captain Lionel Messi is banned from international football for three months after claiming the Copa America was "corrupt".
Scores, Results & Fixtures
Wednesday 11th September 2019
Friday 6th September 2019
Saturday 6th July 2019
Copa America - 3rd/4th Play-Offs
Wednesday 3rd July 2019
Copa America - Semi-final
Wednesday 9th October 2019
Audio & Video
Watch Lionel Messi's fantastic strike in Argentina's 2-1 victory over Nigeria in the Group D game of the World Cup, from every angle.
With Messi and Ronaldo (and their team-mates) heading home, BBC Sport looks at what's happened so far and what we can expect from the last 16 of the World Cup.