Wesolowski returned to the side following their promotion to League One, but suffered a further knee injury in September 2015 just three matches into his comeback, which was initially thought to rule him out for the rest of the season. After playing a full ninety minutes and scoring Shrewsbury's equalising goal in their Shropshire Senior Cup final win against local rivals AFC Telford United, he returned to the first team ahead of schedule in a home match against Sheffield United in April 2016. At the end of the season, Wesolowski was offered a new contract – reportedly on reduced terms – and was still training with the first-team during the following pre-season.