Garry Ringrose has been ruled out of the Lions' first test against Australia next weekend.
The Leinster centre is following concussion protocols, having picked up a head injury in the win over the Brumbies midweek.
The news was confirmed by head coach Andy Farrell following the Lions' 48-nil win over an Australia/New Zealand invitational side earlier today.
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Duhan van der Merwe scored a hat-trick of tries for the tourists in Adelaide.
