Sent off in minute one, tearful goodbye 21 years later — how well do you know Messi's national-team story?

Lionel Messi announced his retirement from the Argentina national team. Let's see how well you know the details — from his debut to his farewell.

1. How old was Lionel Messi when he announced his retirement from the Argentina national team?
2. Through which channel did Messi announce his retirement from the national team?
3. When did Messi write the announcement text, before actually publishing it?
4. What happened to Argentina in the World Cup final, after which Messi wrote his farewell text?
5. Where and when did Messi make his debut for the Argentina national team?
6. What happened to Messi one minute after his national-team debut?
7. What finally prompted Messi to publish the announcement he had already written?
8. Whose great-granddaughter chose professional sports, according to the article?