Bumper thrower to quit

Motorsport: An Italian who threw part of his gokart at a rival during a world championship final, prompting 2009 Formula One champion Jenson Button to call for a life ban, apologised yesterday and said he was leaving the sport.

Coverage of the KZ final at the South Garda circuit in Lonato, northern Italy, on Youtube showed 23yearold Luca Corberi crashing out and then waiting by the side of the track for rival Paolo Ippolito before hurling his kart's bumper at him. Nobody was hit.

The Gazzetta dello Sport website said Corberi had posted an apology on Facebook, before deleting it.

``There are no excuses to explain why I did something so shameful,'' it quoted him saying. ``I have decided not to take part in any other motorsport competition for the rest of my life.''