Ospreys wing Kristian Phillips is led off with a dislocated shoulder on Friday
Wales Under 20 and Ospreys wing Kristian Phillips is out for the season with a dislocated shoulder.
Phillips suffered the injury during the Ospreys' defeat by Leinster at Liberty Stadium on Friday.
He will undergo surgery to repair the damage, having also suffered a shoulder injury in September.
The wing was joined on the Ospreys' injury list by centre David Bishop who spent the night in hospital with a badly cut ear.
Phillips could be out of action for up to six months, forcing him to miss the remainder of the Wales U20 Six Nations campaign and age-group world cup that follows in Japan.
The Ospreys are unsure when Bishop will return.