Formula One bosses have officially called off next month's grands prix in Bahrain and Saudi Arabia owing to conflict in the Middle East. While several alternatives were considered, it was decided that no substitution will be made in April. 'The decision has been taken in full consultation with Formula One Group, local promoters and member clubs in the region.' Seven-time world champion Lewis Hamilton said prior to the decision: 'I know Stefano will do what is right for us and the sport. 'Those races are a long way off,' said one source within Formula One Management.