Only medical hypnosis is capable of opening up amnesia.
As far as hypnosis is concerned I had a very serious problem when I was in my twenties. I encountered a man who later became the president of the American Society of Medical Hypnosis. He couldn't hypnotize me.
I tried acupuncture the patch and hypnosis but found that I needed to do it alone - when the time was right for me.
I think sometimes when it comes to sports and especially relationships between players and coaches that people lose track lose a sense of reality.