Manchester United boss Sir Alex Ferguson admits surrendering the title to Manchester City last season left him angry.

Ferguson was discussing with Harvard Business School students last term's title collapse:

"I've still got a wee bit of anger in me, thinking of how we threw the league away last season.

"It was another day in the history of Manchester United. That's all it was. It created the drama that only United can produce.

"Who would have thought that Blackburn, bottom of the league, would beat us 3-2 at Old Trafford? Or that Everton would draw with us when we were up 4-2 with seven minutes to go?

"My motivation to the players will be that we can't let City beat us twice in a row."