United started strongly in the first half and could have gone in at the break ahead, with good chances for Morgan Gibbs-White and Iliman Ndiaye going begging.
Those misses looked like they may come back to haunt the Blades when Chris Martin put City ahead after the break. But a moment of magic from Gibbs-White, when he scored the equaliser with an acrobatic overhead-kick effort, earned the Blades a point – even though he was visibly frustrated at the full-time whistle that it was not three.
The point takes United to 66 and further increases the gap to Blackburn Rovers and Middlesbrough, who both lost earlier in the day.
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