The England rugby centre Manu Tuilagi has written to Prime Minister David Cameron to apologise for playing a prank on him during a visit to Downing Street.
Tuilagi made a 'bunny' gesture with two fingers behind Cameron's head while posing for a photograph with British and Irish Lions players on Tuesday.
He has already tweeted an apology for his actions at a function to mark the series win over Australia.
Samoan-born Tuilagi ran into trouble two years ago when he jumped from a ferry during the World Cup in New Zealand.
