Seamus Coleman is back in the Ireland starting XI as manager Heimir Hallgrimsson named his side to face Portugal at the Jose Alvalade Stadium in Lisbon.
The former captain will join current skipper Nathan Collins in the defence, in what could be a five-man formation out of possession with Jake O'Brien and Dara O'Shea also starting, while Ryan Manning should fill a left-sided position.
Jayson Molumby and Festy Ebosele have also been named in the team for tonight's World Cup qualifier as Ireland look to kick-start their campaign following a poor showing in September.
Molumby will partner Josh Cullen in the middle of the park, while Ebosele and Chiedozie Ogbene will add energy and width, moving between midfield and attack.
Evan Ferguson will lead the line in attack, while, Caoimhín Kelleher, as expected, continues in goal.
Cristiano Ronaldo starts in attack for Portugal and captains a star-studded line-up, which includes Bernardo Silva, Vitinha, Pedro Neto, Ruben Neves and Bruno Fernandes in an attack-minded formation.
Portugal: Diogo Costa; Diogo Dalot, Ruben Dias, Goncalo Inacio, Nuno Mendes; Bruno Fernandes, Ruben Neves, Vitinha; Bernardo Silva, Pedro Neto, Cristiano Ronaldo
Republic of Ireland: Caoimhín Kelleher; Seamus Coleman, Nathan Collins (capt), Jake O'Brien, Dara O'Shea, Ryan Manning; Jayson Molumby, Josh Cullen, Festy Ebosele, Chiedozie Ogbene; Evan Ferguson
Referee: Ivan Kruzliak (SVK)