( CNN ) -- Ferrari driver Fernando Alonso is quickest in practice for Sunday 's Belgian Grand Prix . Alonso posts lap of 49.032 seconds , one minute at Spa circuit . Force India 's Adrian Sutil came second with McLaren 's Mark Webber third . Championship leader Mark Webber of McLaren was 2.6 seconds off India .
Ferrari driver Fernando Alonso is quickest in practice for Sunday 's Belgian Grand Prix . Alonso posts lap of 49.032 seconds , one minute at Spa circuit . Force India 's Adrian Sutil came second with McLaren 's Mark Webber third . Championship leader Mark Webber of McLaren was 2.6 seconds off India .