Not fully confirmed yet, but I see news of this in semireputable sources like the Sun and the Daily Mail. He had brain surgery earlier this month.
https://www.dailymail.co.uk/sport/football/article-8986821/Diego-Maradona-died-suffering-cardiac-arrest-according-reports.htmlDiego Maradona has died at the age of 60 after suffering a cardiac arrest, according to reports in his native Argentina.
The football legend had a heart attack at his home just two weeks after leaving hospital where he underwent surgery on a blot clot in his brain.