Exposures arising from the performance of duties by athletic trainers, physicians, and other professionals might be vicariously imputed to promoters, sponsors, events, or teams. To protect themselves, sponsors or teams should ensure these professionals have certificates of insurance, and should obtain their own professional liability coverage. As added protection, promoters, sponsors, or teams should have this cover added to their general liability coverage on an "incident" basis, in case they should be named in litigation or otherwise have a claim made against them.