Gary Neville says Manchester United will be punished if they put in a tame performance against Arsenal at the Emirates Stadium this weekend.
The Reds were forced to make hard work of Nottingham Forest last time out after conceding two goals within four minutes before their 3-2 comeback.
United have underwhelmed with their displays so far with a narrow win over Wolves followed by a disappointing 2-0 loss to Tottenham.
Arsenal slipped up for the first time on Saturday when they were held to a 2-2 draw by Fulham after two wins in their previous opening fixtures.
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