Despite having missed the last nine months on the sidelines with a knee injury, the England international insists he will be quicker than ever upon his return.
And with fellow Three Lions international Welbeck and Chilean World Cup star Alexis Sanchez arriving at the Emirates, the 25-year-old hopes to line up in an attack that he reckons will be the fastest in the Premier League.
Welbeck scores England's opener in Basel
“I hope we’ll have the fastest forward line in the Premier League, these are exciting times,” said the Walcott.
“These players are very, very fast, they will fit the bill perfectly. Alexis has settled in very quickly.”
On Welbeck, who scored both goals in England’s victory over Switzerland on Monday, he continued: “Danny is a good guy I have worked with him with England.
"He always puts his heart on the line. At timdes I thought he needed to be a bit more selfish so I was very happy on Monday night - he will get more goals now.”
Walcott was speaking at Sportwaves, a charity exhibition and auction for the Willow charity, and he told those in attendance that he hopes to be back quicker than ever after injury.
Welbeck makes it two
“I hope to be quicker, definitely,” said Walcott. “I’ve been working very hard. You’ve got to look at these injuries as a bit of a blessing at times.
“I’ve never had the opportunity to work on the strength in my legs and with that I think hopefully I should be quicker and stronger. So that’s what I’m looking forward to.”
He added: “I haven’t actually put a date on when I’ll return. It’s weeks rather than months now. My legs have bulked up.”