A fairly extensive (but non-exhaustive) international list of athletes who have collapsed this year, including deaths, linked below.
https://goodsciencing.com/covid/athletes-suffer-cardiac-arrest-die-after-covid-shot/ There is an interesting entry on Christian Eriksen, rather supporting my information and may help explain why 31% of EFL have not taken the controversial new mRNA "vaccines" and 25% don't intend to at all. I would be astonished if the truth wasn't well known among footballers. Marvin Morgan is listed as unknown.
Note how the rate of incidents steadily increases during the year, peaking in about October and remaining elevated compared to last January. This may not be a trend, but it is perhaps a worrying "not a trend". Make of it what you will.
The most recent incident in these islands is a Doneghal hurling player who collapsed on the 19th of December.
N.B. I am not the least bit interested in the history of the linked website, however, any additional information on the incidents listed would obviously be welcome. They do in fact have a contact form if anyone wants to send them corrections.