Arsenal stormed to a 4-1 victory in the first leg of their Europa Leg Quarter Final tie against CSKA Moscow with Aaron Ramsey and Alexandre Lacazette both netting first half braces at the Emirates Stadium.

It seems unfair, considering such a positive result, to begin with a negative, but when the Russian's sides midfielder Aleksandr Golovin netted a beautiful free kick to make the scores 1-1 on 15 minutes - after Ramsey had opened the scoring six minutes previous - a lump may have begun to form in the throats of many of the Arsenal faithful.

With a tough tie coming up in Moscow this week, being resilient in defense may have been the most important facet of this game. When that away goal went in, despite a positive start from the Gunners, the tie could have went either way. Another goal would have been approaching disastrous - thankfully, things went the other way, and Arsenal were fantastic.

That Ramsey finish that opened the scoring actually did a god job of setting the pace for what was a blistering first half. The Welsh midfielder found himself in buckets of space at the back of the CSKA penalty area, and could be seen screaming for Hector Bellerin to find him when the defender had the ball at his feet. He duly did so, and Ramsey made no mistake for his first of the night and the half. This was just a taste of what was to come, however.

CSKA came to play football, they weren't looking to keep the score low and then build upon that in the second leg - this was obvious by the way they came crashing out the gate in the opening minutes. Ahmed Musa broke free of the back line, and would likely have found the net early on only for an offside flag.

Then there was the aformentioned equalizer from Moscow, with an inch perfect free kick from Golovin sailing past Petr Cech in the Arsenal goal (in place of David Ospina who sprained an ankle in training) and striking a sense of fear around the emirates in the process.

Thankfully, it didn't stunt the Arsenal momentum - the slick play that had featured over the course of the opening quarter of an hour of the match was built upon, up until the 23rd minute, when a marauding Ozil was taken down in the way sides penalty area - spot kick Arsenal.

After scoring a penalty upon his return from injury against Stoke City at the weekend, Alexandre Lacazette stepped up. If the reasoning behind Pierre-Emerick Aubameyang allowing his teammate to take the penalty against Stoke was to allow him to build his confidence, then on the evidence of this display, it surely worked - he made no mistake, Arsenal were back in the lead.

With some of the pressure lifted after regaining the lead, Arsene Wenger's side started playing some excellent football, which lead to a truly astonishing goal. Some liquid passing play - the kind that only appears when Arsenal are playing with real confidence - led to a perfect looped pass from Ozil into the CSKA penalty area, with Ramsey darting onto it. While it was still airborne, the Welshman produced an unbelievable flick to lob the ball over Igor Akinfeev in the Moscow goals in what was perhaps the best goal from the side all season - it was that good.

Reminiscent of Olivier Giroud's scorpion kick against Crystal Palace from last season in its execution, Ramsey's outside of the right boot finish is the kind of goal that we will be seeing again and again for years to come, and it is a good thing that it came in such a dominant performance.

Now with confidence sky-high off the back of that wonder goal, the Gunners continued to perform strongly, and with just five more minutes on the clock, they had their fourth.

It was Ozil once more with the assist - after being fed the ball by Granit Xhaka, he crossed above a stretching Aleksei Berezutski to find Lacazette. With a confident touch, the Frenchman set himself up to drive low past Akinfeev for his second of the night. 4-1.

Ozil nearly capped off an incredible half for himself by finding the net just before the end of the first 45, but skied over the bar from 6 yards out. Nonetheless, it was an astounding half for the midfielder as he set up 3 goals and was the instigator of the first.

The second half gave the Gunners plenty of chances to build upon their lead. Ramsey was very unlucky not to have secured his hat-trick on a number of occasions - hitting the post on his final attempt, coming agonizingly close. Alex Iwobi and Henrikh Mkhitaryan also nearly put their names on the score sheet, with the latter having to leave the field with a knee issue.

Mkhitaryan's injury was undoubtedly the biggest blip on the night, but perhaps it will not be as bad as once feared - he is expected to miss the weekends premier League game against Southampton and possibly a little longer, but should be back in the next few weeks.

The game ended 4-1 and the Gunners have put themselves in an excellent position making the trip to the Russian capital for next Thursday's quarter final second leg. Following the match, Arsene Wenger summed the first half up perfectly, describing it as "spectacular and uncomfortable" - spot on; even with Arsenal's often times impeccable play there was an underlying feeling of doubt that was only inflamed by Moscow scoring early on.

Nonetheless, Arsenal have certainly done enough in the first leg - if they can play with the conviction they did here, then they will be contesting in the semi-final.