Ireland number eight Caelan Doris will travel to the UK this week to see a neurologist for his ongoing issues around concussion, according to The Irish Independent.
The Lacken native was released from the Ireland camp last week after a full contact session with Ulster as part of the squad's preparation for today's Six Nations opener with Wales in Cardiff.
An IRFU statement at the time said: "Caelan has flagged some symptoms that could be associated with concussion.
He has returned to Leinster to allow his symptoms to be appropriately assessed and investigated."
There were no further casualties reported from the Ireland camp yesterday afternoon following their captain's run at the Principality Stadium.