Football Tweet ⚽ on Twitter: "We've picked four of the toughest groups in Champions League history: What do you think has been the biggest Group of Death in the competition's history? ☠️
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Pictures: Manchester United's 1999 Champions League victory over Bayern Munich - Manchester Evening News
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Legendary Teams: Manchester United's 1999 treble sparks the best stretch in the club's modern history - International Champions Cup
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