Chris Powell is beaten to the ball by Sheffield United's Keith Gillespie as the Premiership strugglers clash at Vicarage Road
Darius Henderson poses a threat to the Sheffield United defence as he operates as a lone forward for the hosts
Watford's Jay DeMerit battles for possession with Christian Nade who makes his Premiership debut in the clash
The Blades are unfortunate not to be awarded a penalty as Nade is flattened by Hornets goalkeeper Richard Lee
Blades substitute Danny Webber heads a controversial 88th-minute winner from what looks like an offside position
The Watford boss Adrian Boothroyd shows his frustration as his side are denied a penalty with seconds remaining
Sheffield United's boss Neil Warnock is all smiles as his side secure the vital win following a scrappy affair
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