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Oliver Burke earned bottom club Sheffield United a surprise 2-1 win at Manchester United, as the hosts missed out on returning to the top of the table.
The Scot's 74th-minute strike deflected in off Axel Tuanzebe to hand the Blades only their second victory of the campaign, and their first away from home.
Man Utd started brightly, with Marcus Rashford firing wide, before Sheff Utd's Billy Sharp forced a fine save from David De Gea.
Kean Bryan then put Sheff Utd in front on 23 minutes, as he headed in his first Premier League goal from John Fleck's corner.
Harry Maguire equalised for Man Utd on 64 minutes, heading in Alex Telles's corner.
But Sheff Utd restored their lead 10 minutes later when Burke's first PL goal went in off the underside of the crossbar.
Defeat leaves Man Utd in second on 40 points, one behind Manchester City, who have a match in hand.
Sheff Utd remain bottom, but they now move within 10 points of safety.
See: Man Utd report | Sheff Utd report
Next fixtures
Man Utd: 30 Jan v Arsenal (A)
Sheff Utd: 30 Jan v Man City (A)
Match officials
Referee: Peter Bankes. Assistants: Neil Davies, Nick Hopton. Fourth official: Martin Atkinson. VAR: David Coote. Assistant VAR: Marc Perry.
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