John O’Brien is a distinguished former American soccer player whose career is marked by significant achievements both in the United States and Europe. He began his professional journey at Ajax Amsterdam, where he signed an amateur contract at just 17 years old. O’Brien’s international career with the United States national team further solidified his reputation. 

Today, Dr. John O’Brien operates two practices, one focusing on mental health counseling and the other specializing in sports psychology. His journey from a promising soccer player to a respected psychologist highlights his resilience and dedication to making a positive impact in the lives of others, both on and off the field.