Arsenal turned on the style as they beat Watford 3-2 at Vicarage Road to climb up to fourth in the Premier League table.
Watford's Emmanuel Dennis had a goal ruled out for offside after only 16 seconds before the Gunners took a fifth-minute lead through Martin Odegaard, who rolled a Bukayo Saka cutback into the bottom-left corner.
The home side responded quickly as Cucho Hernandez met a Kiko Femenia cross with a fine overhead kick in the 11th minute.
Saka then got on the scoresheet on the half-hour, firing into the roof of the net after a one-two with Alexandre Lacazette.
Lacazette was again involved as Gabriel Martinelli made the score 3-1, setting up the Brazilian to finish from the edge of the penalty area in the 52nd minute.
Moussa Sissoko's control and finish three minutes from time set up a nervy finish but Arsenal were able to see out a fourth straight victory.
That takes their points tally to 48, one more than fifth-placed Manchester United and with three matches in hand. Watford remain 19th, three points from safety.
Watford: 10 Mar v Wolves (A)
Arsenal: 13 Mar v Leicester (H)
Referee: Craig Pawson. Assistants: Lee Betts, Richard West. Fourth official: Simon Hooper. VAR: Darren England. Assistant VAR: Eddie Smart.