Dutch runner Maureen Koster hospitalized after hitting head on track and falling unconscious during race

Dutch athlete Maureen Koster was hospitalized after being knocked unconscious and suffering a “mild concussion” during the 3,000m final at the European Indoor Championships in Apeldoorn, Netherlands, on Sunday.

​ Dutch athlete Maureen Koster was hospitalized after being knocked unconscious and suffering a “mild concussion” during the 3,000m final at the European Indoor Championships in Apeldoorn, Netherlands, on Sunday. Read More Breaking News, Latest News and Videos | CNN