He joined Juventus in 2017 and made 252 appearances throughout seven years in Turin, successful three Serie A titles and three Coppas Italia.
The Warsaw-born participant received 84 caps for Poland, taking part in at 4 European Championships and two World Cups.
When he introduced his retirement Szczesny stated: “Right this moment, although my physique nonetheless feels prepared for challenges, my coronary heart is just not there any extra. I really feel that proper now it’s time to give all of my consideration to my household.”
Szczesny might make his debut in opposition to Alaves in La Liga on Sunday.
Barcelona suffered a 4-2 defeat by Osasuna on Saturday however stay high of the desk with seven wins from eight video games.
On Tuesday Hansi Flick’s aspect beat Young Boys 5-0 within the Champions League.