David Meyler and Robbie Brady will make their senior debuts for the Republic of Ireland, while Kevin Doyle will skipper the team for the international friendly against Oman on Tuesday.
Meyler, 23, has missed a large chunk of the last two seasons through cruciate knee ligament injuries, but Doyle thinks the midfielder will have a long and successful international career.
"He hasn't looked out of place at all since he came in," Doyle said. "I hope he does well tomorrow because he has been impressive in training and he has told me about his two cruciates on the same knee."
Doyle continued: "I have never had a serious injury like that so I can't imagine what it's like mentally, never mind physically, to come back from that.
"That he has come back shows his character, what he is all about, and shows he will have no problem in dealing with what comes his way in the Ireland team."
Brady has not started a game for Manchester United yet but impressed during a loan spell at Hull last term and last week became the record goal scorer for the Under-21's.
Trapattoni sang the winger's praises yesterday and Doyle was similarly optimistic about the 20-year-old's chances of making a big impact in the full team.
"He is a star of the future," Doyle added. "He is top scorer with Under-21's and he has settled in well. There has been no shyness or sitting back. He has slotted straight in."
James McClean was expected to start but he will now once again start on the bench, even though he apologised for his Twitter rant and was given a dressing down in front of the squad.