by Dr. Johnny Benjamin on Jul 29, 2013 at 4:15 pm ET When exactly is the right time for a referee to halt an MMA bout due to strikes? As MMAjunkie.com medical columnist and consultant, Dr. Johnny Benjamin explains, it can be tough for officials to determine. However, there are signs they can look for to determine when a fighter is concussed and susceptible to serious health issues. However, in the current landscape of professional fighting, many of those signs are often ignored