For Isabell Werth, the most decorated Olympic equestrian athlete of all time, it is simple: the horse is everything. “Without a top horse you have nothing, you are just a rider, nothing more,” said the German who has won six gold and four silver medals in dressage during a career which has, to date, spanned five Olympic Games.

Highlights of the Equestrian / Dressage - Individual Mixed on Day 10 of the Rio 2016 Olympic Games at Olympic Equestrian Centre on August 15, 2016 in Rio de Janeiro, Brazil.

Highlights of the Equestrian - Dressage Team Mixed on Day 7 of the Rio 2016 Olympic Games at Olympic Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.

Spencer Wilton of Great Britain riding Super Nova II warms up during the final day of the Dressage Grand Prix event on Day 7 of the Rio 2016 Olympic Games held at the Olympic Deodora Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.

Steffen Peters of the United States of America riding Legolas 92 performs during the final day of the Dressage Grand Prix event on Day 7 of the Rio 2016 Olympic Games held at the Olympic Deodora Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.

Charlotte Dujardin of Great Britain who won a team silver celebrates during the final day of the Dressage Grand Prix event on Day 7 of the Rio 2016 Olympic Games held at the Olympic Deodora Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.

Isabell Werth of Germany riding Weihegold Old celebrates as they win the team gold during the final day of the Dressage Grand Prix event on Day 7 of the Rio 2016 Olympic Games held at the Olympic Deodora Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.

Charlotte Dujardin of Great Britain who won a team silver celebrates during the final day of the Dressage Grand Prix event on Day 7 of the Rio 2016 Olympic Games held at the Olympic Deodora Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.

Sönke Rothenberger of Germany riding Cosmo performs during the final day of the Dressage Grand Prix event on Day 7 of the Rio 2016 Olympic Games held at the Olympic Deodora Equestrian Centre on August 12, 2016 in Rio de Janeiro, Brazil.