Complex sentence: Referees immediately signaled for the medical staff, who administered oxygen treatment as Judson remained unconscious, showing signs of having difficulty breathing, and was taken out via stretcher to the local county hospital.
Split into simpler sentences: Referees immediately signaled for the medical staff, who administered oxygen treatment as Judson showed signs of having difficulty breathing. Remaining unconscious, Judson was taken out via stretcher to the local county hospital.