The 23-year-old replaces Bundee Aki following the IRFU's confirmation that the Connacht centre has not travelled with the Men’s senior squad to Portugal for disciplinary reasons.
The IRFU does not tolerate any form of disrespect shown towards match officials and does not condone actions that fall below the standards expected of players representing Irish rugby.
The IRFU are investigating the matter further internally and no additional comment will be made at this time.