On March 8, 2003, Exter and
Boston College forward
Patrick Eaves were racing for an open puck with about six minutes left in the game. Exter and Eaves collided, with Eaves' left hip striking Exter in the head. The resulting hit knocked Exter's helmet from his head. As Exter's head hit the ice, he was knocked unconscious and blood began to pour from both of his ears. Paramedics on standby for the game and trainers from both Merrimack and Boston college treated Exter and immobilized him before removing him from the ice and transporting him to Beth Israel Deaconess Medical Center. Upon admission, Exter was in a critical condition and was put in a medically induced coma for ten days, and doctors suggested that he retire from hockey. After ten days, Exter was taken off sedatives and started to acknowledge questions by a series of blinks. In less than three weeks, Exter was moved to
Spaulding Rehabilitation Center, where he re-learned to speak and to swallow. A week later, Exter was released to his Cranston home. Exter would later say that he did not blame Eaves for the hit, and that the incident was "a hockey play. ==Professional==