Jack Wilshere has now admitted how disappointed he was when Arsenal sold one of his key teammates in the past. Wilshere is now Arsenal’s under-18s manager having retired from football in 2022, having seen out his playing days in Denmark with Aarhus GF. And although any disappointments in his career are normally all associated with the injuries he unfortunately suffered on a regular basis, that wasn’t the only frustrating factor he had to contend with at Arsenal. Wilshere played for the club 197 times, scoring 14 goals and providing 30 assists. And whilst he will have been pleased to lift two F…