The Gunners coach confirmed that the Poland international goalkeeper is on the verge of a loan switch to Roma after falling down the pecking order at the Emirates Stadium.
The signing of Petr Cech has blocked the 25-year-old’s route to the North London club’s first team, while David Ospina ended last season ahead of Szczesny in Wenger’s preferences.
With Wenger claiming that the Pole has a future at the club despite the signature of Cech, Boniek has hit out at the long-serving French coach.
“I spoke to Szczesny and I'd be very happy if he came to Roma. He is an experienced goalkeeper, very tall and has good technique," Boniek is quoted as saying by Forza Roma.
“I've known him for a long time, as he's an international. He had a row with Wenger, who froze him out of the team.
“He has a few bad habits, like smoking a cigarette after a game, but these are not very serious problems.
“Szczesny is now second choice for Poland because the coach wants someone who starts regularly for his club side.
“He will do well at Roma and I'll call him when he arrives to make sure he knows what not to do in the capital.
“I heard Wenger wants him for the future of Arsenal. That seems a bit of a hypocritical comment, seeing as he sent him away by signing Petr Cech.”
Szczesny made one mistake too many at the start of last season and cost the North London club valuable Premier League points due to his errors.
Wenger dropped the Pole and replaced him with the dependable Ospina, which means that Szczesny is effectively third choice currently.
The chance to play regularly in Serie A and the Champions League for Roma will surely be the ideal opportunity for the 25-year-old to get back to his best.