According to google search
"Messi is autistic. He was diagnosed at 8 years old, still in Argentina, with Asperger's Syndrome, known as a mild form of autism. Although the diagnosis of athlete has been little publicized and questioned, as a way to protect him, the fact is that their behavior on and off the field are revealing."
Do you think this is really true? The guy I was talking to today at the autistic society showed me this source.