Ulster’s director of rugby Les Kiss fears Iain Henderson’s hamstring injury could rule the Ireland forward out for the remainder of this season.
Henderson tore his hamstring during last Friday’s Guinness PRO12 14-7 home win against Edinburgh as Ulster injury toll mounted with Dan Tuohy, Peter Nelson and Darren Cave also withdrawn during the game.
“Iain’s type of injury has historically been up to six months for recovery” said Kiss.
“At this stage it doesn’t look good in terms of the Six Nations.”
Kiss added: “He has a consultation later this week and the medics will work out the best form of surgery going forward.”