He told the Daily Mail: "It's been hard. You start to think: 'What am I doing here?' I'm used to playing in big games.
"I've played in big games for my clubs and for my country.
"It'll be a tough game (against Milan). I hope I'm playing and if I can score and win the game then it'll be great.
"But I remember playing against Charlton (in the FA Cup in January) and scoring two goals, then the next weekend I missed out.
"I was upset about that because once I start scoring I'm confident and I have the feeling I know I'll score in the next game. We played Manchester United and I thought, 'I'm playing', but I didn't start."
"I don't think the club would have allowed me to go on loan. But it was like when I decided to leave here and went to Portsmouth because I got to a situation where I thought: 'I'm not sitting on the bench.'"