Silverstone owners set to make announcement on future of British Grand Prix

Silverstone's owners are poised to announce that they have activated a break-out clause to cease Formula One racing after 2019.

The long-term future of the British Grand Prix will be left hanging precariously in the balance today with Silverstone's owners poised to announce that they have activated a break-out clause to cease Formula One racing after 2019.

British Racing Drivers' Club chairman John Grant was due to host a press conference on Tuesday afternoon, in which he will deliver what has been billed as a "significant announcement" regarding the circuit's future.