Wales' George North (11) having had a clash of heads with team mate Richard Hibbard (blonde hair) (whilst tackling England's Mike Brown 15) falls to the ground apparently concussed. Incident seen by Assistant Referee: Romain Poite - Rugby Union - RBS Six Nations - Wales v England - 06/02/15 - at Millennium Stadium Cardiff Wales UK. Photo Credit - Tom Dwyer/Seconds Left Images