ESPN is running, as part of its E:60 series of short films, a report that all fans of the sport should see.
There appears to be a link between crumb rubber (those sticky black pellets used on artificial turf) and cancer in soccer players, especially goalkeepers.
Watch it. Now.
I'm very glad that my kids only play on grass. We know that concussions and sub-concussive hits from headers can potentially cause health problems, but it looks as though the turf we've used to grow the game across the nation could also pose its own risk to the sport.