Thanks to Arthur Shores for providing these links to guidelines and resources on sports concussion:
There are also a couple of statements by neuropsychological groups in the US:
And the National Academy of Neuropsychology had a recent NAN Bulletin article about the issue
and a video and other resources at:
There will be a meeting in Zurich later this year, to update the Zurich guidelines - but there's plenty of reading to do in the meantime!