Update:
After a hearing which lasted nearly four hours, O'Brien was cleared to play in the third Test.
8:45am
Sean O'Brien has been cited for dangerous play during Saturday's second Test between the Lions and the All Blacks in Wellington.
The Leinster back row is alleged to have used a swinging arm on All Blacks winger Waisake Naholo in the 59th minute of the game. It could mean him missing next weekend's series decider between the two sides at Eden Park.
O'Brien faces a disciplinary hear this morning.
A statement from New Zealand Rugby reads:
British & Irish Lions loose forward Sean O'Brien has been cited for dangerous play during the second Test of the DHL NZ Lions Series, held at Westpac Stadium, Wellington.
Citing Commissioner Scott Nowland [Australia] has cited O'Brien under law 10.4 (a) for allegedly striking All Blacks winger Waisake Naholo with a swinging arm. The citing commissioner said the incident, in the 19th minute of the second half, is deemed to have met the threshold for a red card.
A judicial panel consisting of Adam Casselden (AUS), David Croft (AUS), and John Langford (AUS), will hear the case tonight at 8pm, at the New Zealand Rugby offices.
You can watch the incident below. The replay towards the end of the clip gives a better view of why O'Brien has been cited.
https://www.youtube.com/watch?v=D_EqU1qxf_Q