Oh yeah - soccer, the other football.
here's a case of kid that had a cerebral aneurysm after a soccer head injury, lucky his parents got him to the hospital in time. Jun 2012
http://www.ncbi.nlm.nih.gov/pubmed/22749486
Lucky you don't have a girl LROCK - girls soccer is right behind football in the incidence of concussion.
Epidemiology of concussions among United States high school athletes in 20 sports. - PubMed - NCBI
This whole thing about concussions, and the danger of football, is a great case in how the media, and sensationalism, extreme cases in the public eye, gets blown out of proportion.
Football players sustain concussions at a much higher rate than other athletes. Concussions, may or may not, be related to neurologic brain degenerative conditions that are present in the general public later in life. THere's plenty of evidence suggesting that the tendency to develop neurologic degenerative conditions later in life is a product of either genetic, or long term environmental reasons (probably both), and that in individuals with those factors, multiple concussions most likely accelerates the development of the condition.
The way to deal with the problem is to identify the ways that by which football players most often sustain concussions, and then take corrective action to prevent it, and that's exactly what is being done - and has been done for several years now at both the intercollegiate and secondary school level, by reserachers, academics, coaches, and competition committes and rules makers.
The pros have lagged behind, and they're going to pay for it, through lawsuits. That's it.