Eddie Nketiah scored his first Premier League hat-trick as Arsenal extended their unbeaten start to the season with victory over Sheffield United at Emirates Stadium.

He opened the scoring with a deft touch and swivelled finish after Declan Rice's threaded ball caught out the United defence.

Nketiah's thumping effort into the roof of the net increased Arsenal's lead against bottom-of-the-table United.

A sensational strike from 25 yards completed a perfect afternoon for the England forward Nketiah, who has five league goals this season, all of which have come at home.

Fabio Vieira scored a late penalty after the video assistant referee (VAR) adjudged Oliver Norwood to have fouled him inside the area.

Takehiro Tomiyasu got on the end of a flick from Mohamed Elneny and poked home from a corner in stoppage time.

Victory lifted Arsenal up to second in the table, two points behind north London rivals Tottenham.