Head coach Mikel Arteta said “the gap between” Liverpool and Arsenal “is enormous“ but was pleased his Gunners sealed a win over the Premier League champions.
Sadio Mane opened the scoring at the Emirates Stadium but the hosts responded immediately through Alexandre Lacazette and then Reiss Nelson wrapped up the win with a brilliant finish.
Speaking after the match the Spaniard said the win gives his Arsenal side “energy and happiness” going into their FA Cup semi-final clash against Manchester City which is “a good medicine” for them.
He said as BBC Sport quoted: "Absolutely, in terms of energy and happiness in the dressing room before the semi-final, it's a good medicine. To beat this team you have to have moments in the game when you take your chances, defend and have a bit of luck.
"I was worried after 1-0 how we would react. We were able to pick one moment and believe again.
"We will go for both, our maximum, it is just a few games so we will keep going. The gap between the two teams today is enormous, we can not improve it in two months, but the accountability, the fight is now equal and I am very proud of that. The rest will take some time.
"Arsene (Wenger) did some incredible things and was very successful. I have done nothing yet. We need belief to go in the direction."
On finances: "A big concern, you need quality, quality players and a big squad to compete in these competitions. It is a challenge."
Match win her Reiss Nelson told Sky Sports: "It's a big achievement for us, we've been working hard on the training pitch so getting a win against the leaders is big.
"You dream as a little boy to score against the big boys - so I'm happy with the results and with my goal. When I get home I'll celebrate with my family. I am delighted with the goal and the lads were excellent tonight."