On a global scale, however, autism rates are largely unknown, because of a lack of research and reliable epidemiological studies and a relative lack of awareness surrounding the condition, Dawson told CNN.

CNN: Autism efforts go global at U.N. forum

"Despite the pitch being in a playable condition, surrounding roads and pavements have been deemed a risk to spectators, " the club said.

BBC: Six Scottish Cup ties beat freeze

The lack of details surrounding the matter prompted some speculation on Wall Street about whether he may have a serious medical condition.

WSJ: Google CEO Larry Page Assures Employees About Health, Says 'Nothing Seriously Wrong'