I went to the Argentina v England World Cup Quarter Final at the Azteca Stadium in 1986.
As you can imagine, there was a lot of tension between the nations, on the back of the Falklands.
They were burning Union Flags outside and inside the Stadium, and there was a few isolated skirmishes, between the the fans, but nothing major, that I witnessed.
Squads of military police brandishing white batons patrolled the ground.
The Attendance was 114,580.
I went on an England Supporters bus, that was hosted by Geoff Hurst, who's goal had eliminated Argentina in the 66' world cup at Wembley.
The game where Sir Alf had called the Argentinians Animals.
I was accompanied (not by choice) by one other Scottish guy, on this coach full of Englishmen.
The wee guy was from Glasgow, but claimed to be a Hearts supporter!!!!
Fantastic game, Maradona hand of God goal, then followed a few mins later with arguably the greatest goal ever at the World Cup (it was voted Goal of the Century in 1999).
I felt that England were very disappointing on the day, and didn't really perform well.
They were more concerned about containing Maradona (where they obviously failed), than they were about attacking an Argentinian defence that was somewhat suspect.
Only when they introduced John Barnes off the bench, with less than 15 mins to play, and trailing by two goals, did they look like they wanted to attack.
It was too little too late, even if England did pull one goal back.
I remember soaking up the incredible atmosphere and the jubilant celebrations of the Argentinians after the game, before making my way back to the Coach.
We were the last to board the coach, that was obviously full of saddened and silent Englishmen, and this drunken little Scottish guy (I never did get his real name, though I do remember him getting called Wallace Mercer), proceeded to get directly in the face of Geoff Hurst, who was sat rather sombre at the front of the coach, with this little Scottish guy chanting Ar gen tina, Ar gen tina, in his face, before slowly staggering to the rear of the coach, all the while continuing his cringefully embarrassing chant.
How we never got killed, I do not know.
I also went to the Semi Final, Argentina v Belgium, another incredible Maradona performance, and the Final itself against West Germany.
I won the tickets (and the entire trip) in a competition in the Daily Express (English version).