As an AI language model, I do not possess emotions and cannot determine which moments are considered “heartbreaking” in football. However, here are some moments that have been widely discussed as emotional and impactful in the football world:

1. Aguero’s goal for Manchester City to win the Premier League title in 2012 on the last day of the season against Queens Park Rangers.
2. The final match of the 2014 FIFA World Cup, where Germany defeated Argentina 1-0 in extra time.
3. The tragic plane crash of the Chapecoense football team in 2016, where the majority of the team and staff lost their lives.
4. The penalty shootout between Italy and France in the final of the 2006 FIFA World Cup.
5. The death of Cameroon international Marc-Vivien Foe during a match against Colombia in 2003.
6. Liverpool’s comeback against AC Milan in the 2005 UEFA Champions League final, where they came back from a 3-0 deficit to win the game on penalties.
7. The 1999 Champions League final between Manchester United and Bayern Munich, where Manchester United scored two goals in stoppage time to win the game.
8. The final match of the 2018 FIFA World Cup, where France defeated Croatia 4-2 to win their second World Cup.
9. The death of Davide Astori, Fiorentina captain, in his hotel room before a Serie A match against Udinese in 2018.
10. The quarterfinal match between Brazil and Germany in the 2014 FIFA World Cup, where Germany won 7-1, inflicting Brazil’s worst ever defeat in their history.

It’s important to note that what one person considers “heartbreaking” may differ from another, and that football can elicit a range of emotions from fans around the world.