As others have suggested, soccer players run over 6 miles per match, and much of it involves sudden bursts of energy.
However, there have been a few lists compiled listing dozens of athletes from all sports who have had to retire (or died) due to damage caused by the clot shots, so although soccer has the lion's share of deaths/collapsing players, it is happening in other sports as well. However, from the lists I have read, most of the athletes from other sports were diagnosed before they collapsed/died, so basically they just retired which isn't as dramatic and doesn't attract as many headlines.
Why is it only soccer players?
Tennis players have also collapsed. That's another sport with bursts of intense cardio.
As others have suggested, soccer players run over 6 miles per match, and much of it involves sudden bursts of energy.
However, there have been a few lists compiled listing dozens of athletes from all sports who have had to retire (or died) due to damage caused by the clot shots, so although soccer has the lion's share of deaths/collapsing players, it is happening in other sports as well. However, from the lists I have read, most of the athletes from other sports were diagnosed before they collapsed/died, so basically they just retired which isn't as dramatic and doesn't attract as many headlines.