The Republic of Ireland face Wales in their UEFA Nations League clash at the Aviva Stadium in Dublin, however without Real Madrid star Gareth Bale.
Bale missed Thursday's 4-1 friendly defeat by Spain because of muscle fatigue and will not be in Dublin.
The former Manchester United wigner confirmed that Bale has returned to Real Madrid to continue his recovery and to receive state of the art medical attention.
"Gareth is a massive loss for any team and we'll have to adapt," Tottenham defender Davies told the 'BBC'.
"He is a top player. He has a lot of ability and talent that defenders just don't want to come up against," the Tottenham Hotspur full-back said.
"We'll have a good attacking threat in him against Ireland."
Brooks has impressed many with his Premier League performances since joining Bournemouth from Sheffield United.
He also shone for Wales after coming on as a second-half substitute against Spain at Principality Stadium, providing the cross for Sam Vokes' late consolation goal