England captain Dylan Hartley's ban for striking Sean O'Brien is the latest misdemeanour to have tarnished his disciplinary record which have now seen him suspended for a total of 60 weeks.
April 2007 - banned for 26 weeks after being cited for eye-gouging Wasps forwards James Haskell and Johnny O'Connor.
March 2012 - received an eight-week suspension after being cited for biting the finger of Ireland back row Stephen Ferris while playing for England in a Six Nations game.
December 2012 - banned for two weeks after being cited for punching Ulster hooker Rory Best during a Heineken Cup match.
May 2013 - sent off for verbally abusing referee Wayne Barnes during the Premiership final against Leicester at Twickenham. Received an 11-week suspension that prevented him from taking his place on the British and Irish Lions tour to Australia.
December 2014 - sent off for elbowing Leicester centre Matt Smith in the face. Banned for three weeks.
May 2015 - banned for four weeks after head-butting Saracens' Jamie George in Northampton's 29-24 Aviva Premiership semi-final defeat to Saracens. As a direct consequence, England ruled Hartley out of their World Cup plans.
December 2016 - sent off for striking Leinster flanker Sean O'Brien with a swinging arm. Suspended for six weeks.