The Gunners legend has praised his former manager after his 18 years in charge of the club.
The Frenchman celebrates 18 years in charge of the Gunners tonight and Ljungberg, one of his former players, believes what he has achieved in north London is nothing short of amazing.
And the Swede is impressed that Arsenal are still competing with the best under Wenger after so long.
“I think the manager is versatile if you look at the number of teams he's created,” Ljungberg told Sky Sports News.
“I won a number of titles when I was there and when they moved away from Highbury to the Emirates I think they had a bit of a financial restriction on his squad. But the boss still managed to get into the top four every time which is amazing.
“A lot of us stayed at Arsenal because both the club and the manager are special. I was there for nine years in the prime of my football career and the way that we played football was special.
“We enjoyed it all of us and that was the main thing. The manager gave us freedom but we loved technical football, and he provided that, so it was an amazing time to play.”
Ljungberg's comments come at an intriguing time for Arsenal, with many fans questioning that very quality of Wenger's - his versatility, or apparent lack thereof.