Headlined 'Puzzling heart diseases in football,' the report begins by highlighting the case of FC Barcelona's Sergio Agüero, the 33-year-old striker who recently had to be withdrawn from a match after 41 minutes suffering from dizziness and breathing difficulties.

The article lists a large number of recent cases of footballers who have had heart problems or collapsed on the field, in some cases leading to death.

That list is republished here;