After the German championship 2016 the horse of Daniel Kaiser, Down Under, was injured on the tendon. It looks like they can only start to train together in May 2017 which would be too late for the international season. The vaulter decided not to compete with another horse this year.
Later in his statement on his website, Daniel Kaiser says that he attaches his career end to the health of his horse. If the horse recovers, they will try to take part in the German championships. The goal is to compete in the selection trial for the world championships 2018.
Further more Daniel Kaiser plans to attend Wiesbaden and the CVI Krumke on horses from Kai Vorberg.