Northampton's Dylan Hartley (R) looking angry, walks towards Saracens' Jamie George (largly hidden by number 7) then appears to head-butt him, an offence for which he has subsequently been cited - Rugby Union - Aviva Premiership Semi-final - Northampton Saints v Saracens - 23/05/15 - At Franklin's Gardens, Northampton UK. Photo Credit - Tom Dwyer/Seconds Left Images