Injuries limited Fabiański's appearances during the 2012–13 season, where he made only four Premier League appearances as back-up to Wojciech Szczęsny. In March 2013, after Szczęsny was dropped, Fabiański started in goal in the second-leg of Arsenal's UEFA Champions League tie against Bayern Munich. He kept a clean sheet as Arsenal won 2–0 and retained his place in the team to make his first Premier League start of the season away against Swansea City on 16 March 2013, again keeping a clean sheet in a 2–0 win. Fabiański started in Arsenal's next three league matches against Reading, West Bromwich Albion and Norwich City. However, an injury sustained in the match against Norwich by Fabiański allowed Szczęsny to return to the starting line-up and reclaim his position as first-choice goalkeeper.