Thursday 12 January at 07:35 : Jan.12 (GMM) Two prominent F1 figures have expressed disappointed at reports the Belgian grand prix at Spa-Francorchamps could become only a biennial event.

It is reported that France's Paul Ricard is close to inking an agreement to share alternating race hosting rights from 2013 with the fabled Belgian track.

On Twitter, outspoken Red Bull driver Mark Webber denounced it as a "shit idea".

And Pirelli's motor sport director Paul Hembery reacted similarly: "Yuk.

"Agree (with Webber), leave Spa alone."