Arsenal striker Alexandre Lacazette says their sudden revival is thanks to a tactical change from manager Mikel Arteta.

Arteta was under mounting pressure but his alterations in selection and formation have paid off in wins over Chelsea and Brighton, much to the delight of Lacazette.

He told RMC: "The coach puts me as a No 9, but more with a role to play for my team-mates and challenge a lot. It is not really a 10's position, nor an old-fashioned No 9 that has to stay ahead and score goals.

"He knows my qualities and knows that I like to play short and help my team-mates with the development of play.

"Now we're four behind and three midfielders. It's much easier, because before we lacked attacking players. This tactical change is also good for us."

Lacazette tweaked his back against Chelsea and had to settle for a place on the bench against Brighton.

His impact was immediate, scoring just 21 seconds after he was brought on by Arteta.

Afterwards he reflected: "It never happened to me. After the match, I was told that I had scored after 21 seconds.

"I was a little surprised, but it's true that everything went quickly.

"When the team lost confidence, it was also my case. I had few situations in match, only one per game. I had to make it happen, and that's what I didn't do.

"In the game, it was not exceptional either. Since then, we have regained confidence, me too with the matches of Europa League who helped me."