You have to go out onto the pitch feeling good about yourself. That can give you that extra 30 per cent.
When I go home every night, I can look in the mirror and say I have given 110 per cent for Newcastle United. If people aren't happy with that, I can't give any more.
My motto in life is 'if you give 100 per cent then no one can ask any more'.
You should always give 100%. If you do that then no-one can ask any more of you. Someone once said to me when I was a kid: 'If you're asked to do ten sprints, by all means do 11 but never do nine because you're only cheating yourself'.
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