Sean O’Brien ‘chomping at the bit’ to return to Leinster for Champions Cup action

The 29-year-old could now play a part in this Saturday's Champions Cup opener.

Leinster could have Sean O'Brien back in harness for the start of their European Champions Cup campaign.

The province have confirmed that the Ireland flanker is set to return to training this week after an eight-month lay-off with a hamstring injury.