Singer Justin Timberlake poses backstage after hosting the 2008 ESPY Awards in Los Angeles, California July 16, 2008. [Agencies]

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Justin Timberlake says playing hockey in his new movie was one of the "toughest" things he has ever done. Justin had to learn how to play ice hockey to prepare for his role in comedy 'The Love Guru', but admits he had no idea how difficult it would be.

He said: "I had a crash course in learning to play goalkeeper about two weeks before flying into Toronto to start the film. I played roller hockey when I was younger, but it's not the same. "Learning how to be a goalkeeper was probably one of the toughest things I have ever done."

Justin - who is reportedly set to propose to his girlfriend, actress Jessica Biel - also revealed he is planning to take a career break later this year.

He said: "I think I'm working too much this year, so I'm going to take some time off. I think once you come to a comfortable place as an adult, you realise you realise that your work isn't your life."