The England international had a poor game at the weekend as his side lost 3-2 to Manchester United, touching the ball only 17 times before being hauled off after 63 minutes.
Commentating on BBC Five Live, Jenas believes Walcott had a poor game and questioned why after ten years with the Gunners hasn’t the forward hasn’t made more of an impact in North London.
“I was very disappointed with Theo. I think he would look at himself and he would say ‘I’ve had a very poor game today,” Jenas explained.
“He’s been there 10 years. I’m thinking, what is your influence within this team, because when you watch him from the stands, he still seems like that youngster who started a long time ago.”
“If you’ve been at a club for so long, I’d expect you to have a bit more of an influence with the players.”
Walcott joined Arsenal from Southampton as a highly-rated 16-year-old, and a player who dominated the headlines for making the England national team squad for the 2006 World Cup.
With Thierry Henry joining Barcelona not too long after Walcott joined Arsene Wenger’s side, the comparisons were evident and expectations were placed on the forward’s shoulders.
Whether it was pressure to succeed or not, Walcott has simply failed to reach the heights expected of him and his struggles to nail down a regular starting berth has prompted doubts over his future.
The 26-year-old has scored just four Premier League goals in 21 appearances this season, only two more than Danny Welbeck who has featured for a grand total of 90 minutes.