Sergio Aguero was on the scoresheet for his sixth goal in three matches at the Bramall Lane as he helped his side secure a 1-0 win against Sheffield United on Tuesday night.

The Argentine came from the bench after the Citizens struggled to convert chances to put his side ahead in the 73-minute.

Raheem Sterling was denied by a fine Dean Henderson stop before City were awarded a penalty as Chris Basham fouled Riyad Mahrez.

But Gabriel Jesus's spot-kick was saved by Henderson, diving to his right. 

Pep Guardiola introduced Aguero as a substitute in the 67th minute, and the striker scored the decisive goal six minutes later from Kevin De Bruyne's superb low cross.

The Belgian was given too much space on the right of the box and teased the ball across the six-yard area to Aguero, who ghosted his way past Basham and tucked it home from close range.

Sterling shot wide late on, but one goal was ultimately enough for the champions.

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Second-placed City move 13 points behind leaders Liverpool, who have two matches in hand. Sheffield United remain seventh on 33 points.