The Red Devils lost 2-1 to Huddersfield Town at John Smith’s Stadium last weekend following two first-half goals before Marcus Rashford’s consolation goal.
Manchester United have fallen five points behind leaders Manchester City after a goalless draw with Liverpool cost Jose Mourinho’s side more ground.
The 20-time English champions are looking to win their first Premier League title since 2013 when Sir Alex Ferguson steered the Red Devils to their final top-flight crown under his management.
Manchester United will host Tottenham Hotspur in their next Premier League game at Old Trafford on Saturday afternoon.
Former Manchester United defender Neville has warned Mourinho’s side that Manchester City are clearly the best team in the Premier League.
“Man City are by far the best team in the Premier League right now,” Neville told BBC Radio 5 Live.
“It will take some team to beat them at the moment.”
Manchester United finished in sixth place in the Premier League table last term.
The Red Devils won the Europa League and the League Cup last season.
Mourinho signed Benfica defender Victor Lindelof, Everton striker Romelu Lukaku and Chelsea midfielder Nemanja Matic in the summer transfer window.
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