Rugby UnionUlster discipline key for captain Iain HendersonBy The NewsroomPublished 25th Nov 2019, 20:55 BST Iain Henderson helping Ulster home against Clermont. Pic by INPHO.Captain Iain Henderson is not getting carried away with Ulster’s start in the Heineken Champions Cup - despite sitting top of Pool four after two games.Related topics:Iain HendersonUlster