Southampton secured their first win at Old Trafford in 27 years as they saw off an out-of-sorts Manchester United side on Sunday. Dusan Tadic scored the only goal of the game - just six minutes after coming off the bench - to secure a memorable away day for the Saints. Here, Sportsmail assesses how each player has performed. MANCHESTER UNITED (3-5-2) David de Gea  - 6 The Spaniard didn't have much to do but could do nothing to stop the Saints' winner as Tadic struck the ball home with aplomb. Chris Smalling - 6 Made a number of crucial interceptions for the hosts in the first half. But was caught sleeping for the all-important winner.
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Southampton secured an impressive win at Manchester United on Sunday
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Dusan Tadic came off the bench to score the all-important winner
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Saints' first win at Old Trafford in 27 years and also in the Premier League
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Ronald Koeman's men move up to third in the Premier League after 1-0 win
Was brought on to be an aerial threat for the hosts, but had no real joy with the @placeholder defence dealing with everything that was thrown at them.