This week several of the world's best riders and horses travel to Qatar to compete at the CSI5* event at Al Shaqab, Doha. On the entry list are big names such as Scott Brash (GBR), Christian Ahlmann (GER), Marcus Ehning (GER), Simon Delestre (FRA), Kevin Staut (FRA), Edwina Tops-Alexander (AUS), Luciana Diniz (POR), Gregory Wathelet (BEL), Steve Guerdat (SUI) and Bertram Allen (IRL).