English and Lions centre Manu Tuilagi has apologised for making a 'bunny ears' sign behind British prime minister David Cameron during an official visit.
Tuilagi pulled the prank during the British and Irish Lions' visit with Cameron at Downing Street.
"Apologies for messing around on Lions photo. No offence intended. Great Day at Downing Street. Thanks to Prime Minister for hosting us," Tuilagi tweeted.
The Lions were visiting the British PM after a successful 2-1 series victory over Australia in July.