Not notifying your employer in writing can create disputes later

https://www.scribd.com/document/1015700676/Avoid-These-Vocational-Rehabilitation-Mistakes-in-Cumming-GA-Workers-Compensation-A-Work-Accident-Attorney-s-Advice-199694

Not notifying your employer in writing can create disputes later. Provide timely, written notice describing how and when you were injured.