And Ozil became the highest scoring German player in Premier League history (30 goals).
The Gunners have a great record against Leicester City in north London, and Arsenal haven't dropped points when faced with the Foxes in their last seven meetings in north London.
A brilliant display from Mesut Ozil was integral as Arsenal won their 10th game in a row in all competitions.
Unai Emery's men have now moved up to fourth place in the Premier League standings on 21 points and Sutton thinks the Gunners are growing, though fans are remaining level-headed.
Maguire then should have sent Leicester ahead moments later when he had a free header inside the Arsenal box, but Leno was on hand to make a wonderful save.
Henrikh Mkhitaryan had a wonderful chance to send Arsenal ahead early in the second period following a mix-up inside the Leicester box, but the Armenian fired just wide of the post from a unsafe position.
The playmaker missed the 5-1 win at Fulham ahead of the global break due to a back spasm but is now back in full training alongside Danny Welbeck - who withdrew from the England squad after a hamstring issue.
Goalkeeper Petr Cech, defender Sokratis Papastathopoulos, midfielder Ainsley Maitland-Niles, attacking midfielder Mesut Ozil, and striker Danny Welbeck could all be available for selection.
It is now 3-1 to Arsenal.