- Howe brought on Callum Wilson and Bruno Guimaraes despite their 3-0 lead
- The Newcastle manager admitted he was using the latter stages as training
- • Is Erik ten Hag out of his depth at Man United? Listen here to It's All Kicking Off
Newcastle inflicted further misery on the hosts following their Manchester derby defeat by ending their Carabao Cup defence in the fourth round.
Miguel Almiron and Lewis Hall struck in the first half, with substitute Joe Willock adding a third on the hour mark.
Howe was questioned post-match about his decision to bring on regulars Callum Wilson and Bruno Guimaraes four minutes after taking a 3-0 lead.
The Newcastle boss also brought on captain Kieran Trippier for the closing 15 minutes of the match.
Eddie Howe admitted Newcastle used the latter stages of their win over Man United as training
Howe brought on regulars including Bruno Guimaraes despite Newcastle's 3-0 advantage
The Newcastle manager's comment will further increase the gloom around Man United
As reported by the Times, Howe said 'the intention was to give minutes to players, so they could use it as a training session'.
Howe's comment underlined the dominance of his side at Old Trafford, with the Newcastle boss looking forward to future tests.
The statement will be an further blow to Man United boss Erik ten Hag, who is facing mounting pressure following another dismal defeat.
Newcastle were handed another tough test in the draw, after knocking out both Manchester clubs in consecutive rounds.
The Magpies will travel to Stamford Bridge to face Chelsea in the quarter-finals, as they seek to go one step further after losing last year's final to Manchester United.
Howe's side return to Premier League action on Saturday when they host second placed Arsenal, who remain unbeaten in the Premier League.
Man United travel to Fulham as the Red Devils seek to relieve pressure on Ten Hag.
United head into the match ninth in the Premier League, eight points adrift of the top four.
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