Pirelli warn they could leave F1 if no test deal

Formula One - F1 - Russian Grand Prix 2015 - Sochi Autodrom, Sochi, Russia - 8/10/15 General view of Pirelli tyres Mandatory Credit: Action Images / Hoch Zwei Livepic

LONDON (Reuters) - Sole supplier Pirelli has warned that it could walk away from Formula One after the current season if the sport fails to ratify tyre testing plans by close of play on Monday.

The motorsport.com website quoted Pirelli motorsport director Paul Hembery as saying there would not be enough time to prepare new, wider tyres planned for 2017 if the governing FIA's Formula One commission stalled on approving rule changes.