Belarus' Alena Tseliapushkina rides Passat as she competes in the Eventing Cross Country equestrian event at the London 2012 Olympic Games in Greenwich Park, July 30, 2012. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT OLYMPICS EQUESTRIANISM)

Alena Tseliapushkina of Belarus riding Passat performs during the equestrian Eventing Individual Dressage Day 1 in the Greenwich Park during the London 2012 Olympic Games, July 28, 2012. REUTERS/Mike Hutchings (BRITAIN - Tags: SPORT EQUESTRIANISM OLYMPICS)

Alena Tseliapushkina from Belarus rides Passat during the equestrian eventing dressage competition at the Beijing Olympic Games 2008 in Hong Kong August 10, 2008. REUTERS/Bobby Yip (CHINA)