
Arsenal maintained their push to secure Champions League football as they beat Leicester City to earn a fifth successive Premier League win.
Thomas Partey headed in unchallenged from Gabriel Martinelli's corner after 11 minutes as the hosts capitalised on their dominant start.
Partey also struck the crossbar as Arsenal pressed for a second, while goalkeeper Aaron Ramsdale was twice called upon to deny Harvey Barnes - including a superb reaction save from a header - as the visitors threatened before half-time.
But, after Leicester defender Caglar Soyuncu was penalised for handball following a lengthy video assistant referee review, Alexandre Lacazette fired in a 59th-minute penalty to put the Gunners in control.
Soyuncu received only a yellow card as Partey's still goal-bound header was cleared off the line by the alert Luke Thomas.
However, there was to be no way back for Brendan Rodgers's side, who remain 12th in the table.
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Arsenal on course to end Champions League wait
Seeking to end a five-year absence from Europe's elite club competition, Arsenal ensured they remain in pole position in the race to qualify with a ninth win in 11 league games.
With three games in hand over fifth-placed United from which to further strengthen their position, Mikel Arteta's men - unlike their immediate rivals - have achieved consistency in both performances and results to emerge as favourites for fourth.
The opening goal was a familiar tale for Leicester, who have now conceded a league-high 15 goals from set-pieces - excluding penalties - after Partey's run to the near post went ignored.
Arsenal had amassed six shots before Leicester, sorely missing injured talisman Jamie Vardy, managed their first attempt after 24 minutes.
But, just as he was in October's reverse fixture, which Arsenal also won 2-0, the inspired Ramsdale was up to the task when the Foxes eventually gained a foothold in the contest.
Martinelli and Bukayo Saka impressed in attack for Arsenal, while Partey was influential in midfield, but it was the slick Martin Odegaard who stood out as he created five big chances for his team-mates in the first half alone.
Lacazette's confidently-despatched spot-kick ultimately moved the game beyond Leicester, after referee Anthony Taylor also took his time to review Soyuncu's subtle handball on the pitch-side monitor.
Rodgers' side must quickly dust themselves down as focus switches to securing a place in the last eight of the Europa Conference League, as they take a 2-0 lead into their second leg against Rennes on Thursday.
For Arsenal, a meeting with title-chasing Liverpool on Wednesday will provide an acid test of their progress since a 4-0 loss at Anfield earlier this season.
Player of the match
ØdegaardMartin Ødegaard
with an average of 8.52
Arsenal
Squad number8Player nameØdegaard
Squad number5Player namePartey
Squad number3Player nameTierney
Squad number32Player nameRamsdale
Squad number35Player nameGabriel Martinelli
Squad number7Player nameSaka
Squad number9Player nameLacazette
Squad number4Player nameWhite
Squad number6Player nameGabriel Magalhães
Squad number10Player nameSmith Rowe
Squad number17Player nameCédric Soares
Squad number34Player nameXhaka
Squad number19Player namePépé
Squad number30Player nameNketiah
Leicester City
Squad number1Player nameSchmeichel
Squad number22Player nameDewsbury-Hall
Squad number7Player nameBarnes
Squad number10Player nameMaddison
Squad number18Player nameAmartey
Squad number11Player nameAlbrighton
Squad number21Player nameRicardo Pereira
Squad number33Player nameThomas
Squad number24Player nameMendy
Squad number14Player nameIheanacho
Squad number29Player nameDaka
Squad number4Player nameSöyüncü
Squad number25Player nameNdidi
Squad number2Player nameJustin
Line-ups
Arsenal
Formation 4-2-3-1
- 32Ramsdale
- 17Cédric Soares
- 4White
- 6Gabriel
- 3Tierney
- 5Partey
- 34Xhaka
- 7SakaSubstituted forPépéat 85'minutes
- 8Ødegaard
- 35MartinelliSubstituted forSmith Roweat 78'minutes
- 9LacazetteSubstituted forNketiahat 88'minutes
Substitutes
- 1Leno
- 10Smith Rowe
- 16Holding
- 19Pépé
- 20Tavares
- 23Sambi Lokonga
- 25Elneny
- 30Nketiah
- 69Swanson
Leicester
Formation 4-2-3-1
- 1Schmeichel
- 21Ricardo PereiraSubstituted forJustinat 61'minutes
- 18Amartey
- 4SöyüncüBooked at 58mins
- 33Thomas
- 24MendySubstituted forNdidiat 61'minutes
- 22Dewsbury-Hall
- 11Albrighton
- 10Maddison
- 7Barnes
- 14IheanachoBooked at 30minsSubstituted forDakaat 74'minutesBooked at 80mins
Substitutes
- 2Justin
- 8Tielemans
- 17Pérez
- 20Choudhury
- 23Vestergaard
- 25Ndidi
- 29Daka
- 35Jakupovic
- 37Lookman
Referee:Anthony Taylor
Attendance:60,111
Live Text
Match ends, Arsenal 2, Leicester City 0.
Second Half ends, Arsenal 2, Leicester City 0.
Luke Thomas (Leicester City) wins a free kick in the defensive half.
Foul by Eddie Nketiah (Arsenal).
Foul by Patson Daka (Leicester City).
Aaron Ramsdale (Arsenal) wins a free kick in the defensive half.
Attempt blocked. Kiernan Dewsbury-Hall (Leicester City) left footed shot from the left side of the box is blocked.
Patson Daka (Leicester City) wins a free kick on the right wing.
Foul by Kieran Tierney (Arsenal).
Foul by Patson Daka (Leicester City).
Gabriel Magalhães (Arsenal) wins a free kick in the defensive half.
Substitution, Arsenal. Eddie Nketiah replaces Alexandre Lacazette.
Substitution, Arsenal. Nicolas Pépé replaces Bukayo Saka because of an injury.
Corner, Arsenal. Conceded by Kasper Schmeichel.
Attempt saved. Emile Smith Rowe (Arsenal) right footed shot from a difficult angle on the left is saved in the centre of the goal. Assisted by Granit Xhaka.
Attempt blocked. Bukayo Saka (Arsenal) left footed shot from outside the box is blocked. Assisted by Emile Smith Rowe.
Patson Daka (Leicester City) is shown the yellow card for a bad foul.
Foul by Patson Daka (Leicester City).
Bukayo Saka (Arsenal) wins a free kick in the attacking half.
Attempt missed. Granit Xhaka (Arsenal) left footed shot from outside the box is too high following a fast break.
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