He joined League Two club York City on 4 October 2013 on a 28 - day emergency loan .
On 15 June 2012 , O'Neill signed for Championship club Burnley for an undisclosed fee .
O'Neill joined League Two club York City on 4 October 2013 on a 28 - day emergency loan .
On 15 June 2012 , O'Neill signed for Championship club Burnley for an undisclosed fee .