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Theo Walcott reckons the current Arsenal attack could be the best in the club's history.

With Alexis Sanchez leading the way and Olivier Giroud, Santi Cazorla and Alex Oxlade-Chamberlain all in form, the returning winger believes there is no limit to what they can achieve.

And he has challenged the Gunners to prove how good they actually are.

After a stuttering start to the season, they have lost just one league game in their last eight outings, keeping clean sheets in each of the last three.

Their quality going forward was clear to see, as they defended valiantly and then broke with conviction in the 2-0 win over Manchester City at the Etihad on Sunday afternoon.

(Image: Michael Steele)

Walcott, who is returning to the side after nearly a full year out of action through injury, has compared the attack to that of when he signed for the club - when Arsenal were in their golden era.

Speaking to Arsenal Player, he said: "When I came, it was Pires and Ljungberg, Bergkamp, Thierry and Reyes - that's some attacking force as well. I think this squad probably does beat it, but we need to prove it first.

"When we go and achieve a little bit more than winning the FA Cup, then I think we can stand up and say this is the best attacking line up we've ever had.

Arsenal in 2014/15 Alexis Sanchez league goals 12 Total Premier League goals 39 Average shots per match 11.68

"It is a headache for the manager when you have that many great attacking options."

The England international winger has also become the latest player to hail Sanchez. He believes that by working with someone who works so hard, it works to get you to up your own game.

Walcott said: "You see somebody working so hard and it makes you want to try to back him up.

In pictures - Manchester City 0-2 Arsenal:

"When you see what he does off the pitch, behind the scenes at the training ground, and how much work he puts in, all the players just stand up and think: Yeah, I need to do a bit more as well then."

Arsenal return to action on Sunday, when they travel to Brighton in the FA Cup Fourth Round.

After that, they host Aston Villa before travelling to White Hart Lane to take on north London rivals Tottenham Hotspur.