The 23-year-old has impressed while on loan at Portsmouth from Tottenham this season.
“Jamie O’Hara got injured in training, didn’t play against Wigan and is not fit for the next game against Aston Villa either,” Pompey manager Avram Grant told The News.
“It’s a back injury. I hope it won’t be a problem for the Cup final, but we need to wait and see with all of the injured players.
“Luckily for us, the FA Cup final is not next week. But we want to get to the Cup final with as many fit players as we can.”
