Roy KeaneGetty Images Sport

'I'll be waiting!' - Roy Keane gives ominous warning to Man Utd boss Erik ten Hag in cringeworthy moment after narrow victory over Fulham in Premier League opener

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  • Man Utd beat Fulham 1-0 in league opener
  • Ten Hag and Keane in cringe exchange
  • Keane sends ominous warning to Ten Hag