Arteta's side were rocked by Cameron Archer's shock opener for the winless visitors early in the second half at the Emirates Stadium.

But Kai Havertz and Gabriel Martinelli struck in quick succession to restore order, before Saka wrapped up Arsenal's fifth win in seven league games.

After finishing as runners-up to Manchester City for the last two years, the Gunners are again in contention for their first title since 2004.

Saka this week said he expects Arsenal to finally lift the Premier League trophy this season.

They sit in third place, one point behind leaders Liverpool, after extending their unbeaten run to 10 matches in all competitions.