Biathlete Olga Zaitseva and her best friend @ the Olympic Winter Games in Sochi 2014 - YouTube

https://www.youtube.com/watch?v=9OXyuuFstCw

In our fourth episode we follow Olga Zaitseva's sister and coach Oksana Rocheva as she takes us on a journey into the top athlete's mind. Oxana not only coac...