O’Shea said: “What a game to look forward to.
“Everyone will be buzzing for the Roma game, and so will the crowd. It will be a special game, and we can’t wait.
“It was disappointing to lose at Portsmouth, especially with the number of chances we created.
“But we were coming back from Europe where we played a lot of the game with ten men, and going to Pompey was always going to be difficult.
“There are plenty of twists left this season and if you had offered us this position at the start of the season we would have snapped your hand off.
“We definitely deserved a draw at Portsmouth, with some of the chances we created, but with the character we have from the manager through the staff to the players, we will bounce back, without a doubt.”