Former Spurs and Arsenal defender Sol Campbell has admitted that the Gunners have been 'left behind' Spurs following the recent growth of the club.
Tottenham have been challenging at the top end of the table for the past few years, while Arsenal have had to settle for a Europa League place for the last two seasons.
The two clubs come up against each other in the North London Derby this afternoon, and Campbell has said that Arsenal must take the opportunity to catch up with their fierce rivals.
"I think the last couple of seasons, for sure. Tottenham have improved massively, in all departments," he told Sky Sports ahead of the match.
"They’ve now got a new stadium, so it’s time for Arsenal to catch-up because they have been left behind, no doubt about it. Arsenal are trying to get back to being that competitive side and they’re slowly doing that.
"What Tottenham have done over the last two seasons has been fantastic, they’ve grown. It wasn’t like that when I was there. Now, they’re up there competing; Champions League final. It’s fantastic."