Did you see the USC vs. Oregon State game last week? Tell me you didn’t miss it. No, I’m not talking about the shocking upset where unranked Oregon State somehow took down the number one team in the nation (though that was impressive as well. And did you know the nickname of Oregon State is the Beavers?). I’m talking about the first ever demonstration of HD instant replay.

With grownups from the NFL to the DOD paranoid about concussions, it’s about time the research community asked, “What about kids?” Research published this month in the Journal of Sports Engineering and Technology offers a unique look into how hard kids are getting hit in hockey. The findings suggest players are suffering the biggest blows to the tops of their heads.

Shrink the field, add hockey-like walls and serve cheaper beer. The triad has been a model of survival for the Arena Football League but also led to more than its fair share of concussions (on the field, of course). Its players' susceptibility to blows made the league a natural fit for helmet manufacturer Schutt to test its Shockometer—a retrofit designed to warn medical personnel of a potential concussion.

In an unexpected move, the International Federation of Association Football, soccers governing body, this week pulled the plug on plans to implement a state-of-the-art scoring system. Instead of introducing the dual technologies—a sidelines camera and in-ball chip—officials have opted for a decidedly low-tech solution for better determining whether a goal was scored: two additional linesmen.