Dr Wybren van der Wal is an orthopaedic surgeon practising in Ede, The Netherlands. He specialised in knee surgery at the University Medical Centre in Utrecht. His main focus is sports injuries. Sports Valley is the High Performance Medical Centre in his hospital, where athletes of all levels receive customized treatment by multiple specialists, and in collaboration with the Dutch Olympic Committee. He is secretary of the Dutch Arthroscopic Society and participates in different research projects like the ACL graft type study.