On 8-6-12 EE was moving a stopper and felt a pain in his knee. He continued to work; on 9/10/12 he was seen by a doctor and was taken off work pending a MRI. On 9-17 he had a MRI. On 11/15/12 he had surgery. The time difference between reporting and submitting report was pending a medical report that determined that this was accepted as an industrial injury.