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Manchester United weathered a storm to secure a 2-1 victory against Arsenal, their first win on the road this season.
The hosts dominated for most of the opening hour at Emirates Stadium but found United goalkeeper David de Gea in excellent form, and Arsenal went behind when Wojciech Szczesny failed to deal with a cross in the 56th minute and Antonio Valencia's drilled cross was turned into his own net by Kieran Gibbs.
United made light of high-profile defensive absentees by closing out their first competitive away win of the Louis van Gaal era, a triumph sealed by Wayne Rooney on the counter-attack five minutes from time.
It could have been three late on when Angel di Maria missed with a one-on-one breakaway opportunity, before Olivier Giroud gave Arsenal something to cheer with a superb finish on his return to the side after being sidelined with a fractured tibia.
There were injuries to Jack Wilshere and Szczesny, who both had to go off, as Arsenal's miserable record against United was extended to one win in 15 attempts and the gap to Barclays Premier League leaders Chelsea was extended to 15 points.