By Chris Harris
The 17-year-old has been through plenty in the past 12 months. A high-profile move to the Premiership, a shock World Cup call-up, a regular place in the Arsenal team and more media attention than he would ever have expected.
As he prepared for another career milestone - his first Cup Final - Walcott explained how he deals with the attention and why fear is not a factor when he steps onto a football pitch.
"I'm only young but a lot of 17-year-olds grow up without playing games [which are screened] on television," he told Arsenal TV Online.
"They work hard with their clubs and gradually move up but I have been playing with a lot of coverage so I am used to it. I don't feel the pressure.
"On the pitch in the Carling Cup we have been playing with no fear. We've got really young players and we just play the game. We just forget about everything else.
"As for all the attention I just ignore it because you might hear stuff you don't want to hear as well as stuff you do want to hear.
"All the top players have told me to do that. When I was at the World Cup, David Beckham was telling me that and when it comes from him, with all the spotlight he is under, you definitely listen."
Subscribers can now hear the full audio interview with Theo. In it he talks about: his hopes for starting the game, the challenge of facing Chelsea, why it was the right decision to join Arsenal, his Cup Final memories, how special Sunday will be for his family and what he learns from the likes of Thierry Henry.
Copyright 2015 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 23 Feb 2007