Barcelona have signed Wojciech Szczesny as a free agent, with the goalkeeper reversing his decision to retire after the Blaugrana lost Marc-Andre ter Stegen to a long-term injury.

Germany international Ter Stegen underwent surgery after suffering a rupture of the patella tendon in his right knee last weekend and is expected to miss the rest of the season.

Inaki Pena was initially expected to cover for Ter Stegen, but Barca have now reinforced their squad with the signing of former Arsenal man Szczesny.

Szczesny had announced his retirement from football last month after terminating his contract with Juventus, where he had been a regular after replacing Italy great Gianluigi Buffon between the sticks.

Szczesny won Serie A and the Coppa Italia three times each with Juve, making more than 250 appearances for the club, but he then lost his place to close-season recruit Michele Di Gregorio.

Barcelona are top of LaLiga with 21 points from eight games and Hansi Flick's side next visit Alaves on Sunday, looking to bounce back from last week's defeat at Osasuna.