Brian O'Driscoll sustained a hamstring injury while playing for Leinster Lions against Sale Sharks in the Heineken Cup Pool Three match in Lansdowne Road last Friday Night.

Brian O'Driscoll sustained a hamstring injury while playing for Leinster Lions against Sale Sharks in the Heineken Cup Pool Three match in Lansdowne Road last Friday Night.

Following a scan, the prognosis is that the injury will require a four to six week recovery period. While this injury may jeopardise Brian O'Driscolls participation in the start of the RBS Six Nations campaign, the Irish management are not ruling him out at this stage.