https://thecovidworld.com/analysis-of-football-injury-data-from-2015-2021-are-heart-related-injuries-more-frequent-in-year-2021/?s=09

"Conclusion

There are more football players with heart-related issues this year than in many other years before according to the data recorded by Transfermarkt. If we were to assume that all excess is caused by vaccinations, it would yield to around a 1 out of 600 chance for footballers to get a heart condition after vaccination."