Formula 1 faces the real prospect of a fan-favourite Grand Prix falling off its calendar soon after a circuit director confirmed there is no agreement for the race after 2025. The pinnacle of motorsport is staging a record 24-round calendar this year as F1 visits tracks in five continents. Europe is home to the baulk of F1’s schedule with nine races, plus rounds in North and South America, Asia, the Middle East and Australia – only missing one in Africa. F1 even goes to 21 countries among the 24 rounds on the 2024 Formula 1 calendar with just the United States of America (three) and Italy (two…