Manchester United became the first side to claim 600 victories in the Premier League thanks to a hard-fought 3-1 win at Middlesbrough.
Boro, with Steve Agnew in caretaker charge following the departure of Aitor Karankak, started brightly but Marouane Fellaini put United ahead with a close-range header on the half-hour mark.
Jesse Lingard then doubled United's lead on 62 minutes with a superb strike into the top corner from outside the area.
The home side pulled a goal back through substitute Rudy Gestede with 13 minutes left but despite piling on the pressure, United sealed the three points when Antonio Valencia tapped in after a Victor Valdes slip.
United move above Arsenal into fifth place while Middlesbrough remain in the bottom three, five points from safety.
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