Wow, this is the first time I have been the focus of that pedant MLG getting on his high horse - its a very strange experience.
I've admitted I am not a head trauma expert. I also agree that the nature of the injury isnt in the public domain.
But the poor sod was on a life support machine with a "serious head injury" and he is in a profession where is head is going to take some pretty high kinetic energy impacts. Not just from a ball, there is always a risk of clashing heads.
My intuition tells me that having had such an injury and with so little still known about the brain and head trauma, that going back into professional football is a bad idea that could end in tears.
Marc Vivien Foe is one example of someone considered 100% fit suddenly dropping dead on the pitch, a feat Fabrice Muamba nearly repeated. Up until then both were considered to have perfectly normal functioning hearts.
Once more, my gut feeling tells me Seaborne back in professional football is just so wrong...