Following the controversy of Arsenal's 2-0 defeat at Chelsea last weekend, Arsene Wenger was looking to make it two wins in a week. His side didn't disappoint as they picked up where they left off from their 2-1 win against Tottenham in midweek. So what did we learn from the performance?
1) Alexis Sanchez ends his goal drought
The Chilean was out with a point to prove today at the King Power stadium, he put the visitors in front before half time, following a slow start from the Gunners. Good play from the hard-working Hector Bellerin down the right, who latched on to a flick from Ozil, left Sanchez free to fire home from close range.
He really shone in the second half, continuing to link up well with Santi Cazorla and Mesut Ozil, and it was the German who set Alexis Sanchez up for his second; chipping a great ball in from just outside the Leicester 18-yard box, resulting in a deft header from the former Barcelona forward.
The game was all but ended as a contest on the 81st minute, Sanchez received the ball from left back Nacho Monreal, the Chilean then drilled a shot from all of 25-yards out, beyond the rooted Kasper Schmeichel in the host's goal.
2) Theo Walcott nets his 12th goal from 13 starts
Much has been made of Arsenal's lack of options in the centre forward position, but Walcott has made it clear that he intends to impress when given the opportunity. The England forward got Arsenal moving. After a sluggish start from the visitors they found themselves one goal down after just 13 minutes. It was a good response from the visitors, Arsenal are always a threat on the counter, as Theo Walcott latched onto a perfectly weighted pass from Cazorla and slotted the ball in at Schmeichel's left-hand post.
Arsenal's No.14 was a menace all afternoon and did not stop making runs. He was a joy to watch and was a constant threat for both Wes Morgan and Robert Huth in the Leicester City back four. He now has 12 goals from 13 starts which is one of the best records in Europe.
It still remains to be seen as to whether Walcott is the long-term answer in the centre forward position for Arsenal, but if he continues putting in big performances he could pose Wenger some difficult questions come January.
3) Mesut Ozil continues to create
The type of player that Ozil is will always draw ridicule from some quarters, this is mostly due to his languid running style but the stats don't lie. He has created the most chances in the Premier League this season (27), and also has three assists in 6 league games to his name.
Ozil is a player that many would love to have at their club and it isn't hard to see why, he always has a complete picture in front of him. Despite the criticism thrown his way for his "lack of work-rate" he does a lot of his best work off the ball, dragging defenders away, which creates space for his team-mates.
He is not the quickest either but he doesn't need to be, his understanding of the game is of the highest level and so is his movement.
His assist for Sanchez's second goal today was a prime example of how accurate his passing is, and on a consistent basis. He very rarely gives away possession easily and along with his creative team-mate Cazorla they make Arsenal's attack tick.
The German play-maker was more involved than most and played a part in four of five Arsenal goals, he has now become an integral part in how Arsenal operate.
4) In the absence of Francis Coquelin Arsenal lack solidity
One negative of the Arsenal performance was their defensive display, at times. Leicester took the lead after just 13 minutes and started the better of the two. Jamie Vardy was always a threat with his good work ethic and pace, he latched onto a long pass by Danny Drinkwater; which he tucked away past a helpless Petr Cech
In the absence of the Francis Coquelin, Arsenal's North London derby hero Mathieu Flamini was given his first premier league start of the season, but only lasted 21 minutes due to a hamstring injury. He was replaced by Mikel Arteta who did ok, he was helped out on numerous occasions by an impressive Laurent Koscielny and the evergreen Santi Cazorla.
5) Hector Bellerin continues to improve
Bellerin had a massive breakthrough season last term and has firmly established himself in the Arsenal first team. Once again the Spaniard excelled in the premier league, showing he can not only defend more than capably but also is a real threat going forward.
It is a big season in Bellerin's development and he will be looking to continue his improvement from last season, his pace makes him a real game changer and from time-to-time operates more like a winger than a full back. He has become a fan favourite and could well be part of this Arsenal side for a long time to come.
He grabbed a great assist after some good work down the right-hand side, put a great ball in which Sanchez converted at the near post. One part of his game that has improved this season is his decision making, Mathieu Debuchy will find it very difficult to displace him from Wenger's starting XI.