The Poland international has stated that it is like ‘winning the lottery’ signing for the Italian giants.
The Poland international fell behind David Ospina in the Gunners’ pecking order last term, while the summer addition of Petr Cech effectively relegated him to third choice at the North London club.
As a result Szczesny will spend the 2015-16 campaign on loan in the Italian capital, where he will get a chance to fight for the Serie A crown and also play in the Champions League.
The 25-year-old has admitted that he had a frank discussion with Gunners boss Arsene Wenger and that his long-term future will be at the Emirates Stadium.
However, he has stated that moving to the Giallorossi for the campaign is ‘like winning the lottery’.
“But this is AS Roma - one of the biggest clubs in the world. They play in the Champions League and will fight for the title in Serie A.
“Being a goalkeeper with no chance for playing and then getting an offer from such big club is like winning lottery.
“I had an honest talk with boss. He said, that another goalkeeper will start new season, so playing in other club would be the best option for me.
“I trust Mr Wenger like no one else, so If he says, that the best way to get my place in squad back would be go on loan, It means he's right. I'm lucky that the boss was honest with me.
“I want to come back to Arsenal and Wenger wants me back. I'm going to back as better, stronger and more experienced goalkeeper.”
Cech will add a world of experience and success to the North London club, with the Czech Republic international already playing a part in Arsenal beating his former club Chelsea in the Community Shield.
Szczesny has paid the price for one too many mistakes in the Arsenal line-up, but will have a chance to prove himself once more in Rome.