Robin van Persie struck inside three minutes against his former club as Manchester United eased to a comfortable 2-1 victory over 10-man Arsenal at Old Trafford.
The prolific Dutchman was taunted throughout by visiting fans but reminded them of his talents in the opening moments in a Barclays Premier League contest United dominated from the outset.
Wayne Rooney missed United's fourth penalty of the season but Patrice Evra added a second and Arsenal's misery was compounded by the sending off Jack Wilshere before Santi Cazorla hit an injury-time consolation.