Connacht sweat over O'Brien
O'Brien injured his shoulder in the Kings game and will see a specialist this week to determine the extent of the injury.
Meanwhile, Finlay Bealham, Quinn Roux, Caolin Blade and Tiernan O'Halloran all returned to play against the Southern Kings with no ill effects from their recent injuries.
Lock Andrew Browne is rehabilitating from an achilles tendon injury and will be out of action for a number of weeks.
Naulia Dawai will be integrated into team training this week as he steps up his recovery from a recent hamstring injury.
In terms of backline players, scrumhalf James Mitchell is continuing his recovery from a shoulder injury, while centre Peter Robb is recovering from hip surgery last week and will be out of action until December.
Niyi Adeolokun is continuing his recovery from knee surgery under the supervision of the medical and fitness teams.
