Crystal Palace winger Wilfried Zaha admits his confidence hit rock bottom during his two years at Manchester United.

Zaha made just four United appearances before playing out the second half of last season at Cardiff.

"There is nothing worse than not being involved," he told the Daily Telegraph. "You are sitting there thinking 'what exactly am I? A footballer who is not playing football?' You feel a bit worthless sitting in the stands, watching all the time. You have nothing to speak about with the players.

"If you have played the game then it's 'well done' or 'you should have passed here or there'. But when you haven't played… I think people lose a bit of respect for you. I think they are thinking 'well, he's not played'. They don't have anything to speak to you about. It's a big thing."