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Fisher made his competitive debut away to Hibs in October due to Mikael Lustig and Adam Matthews' injuries and has since remained in the first-team squad.
The English teenager plays at right-back but originally started in midfield when he first joined the club in the summer of 2011. That was when he signed his first professional contract, building on his experiences at Reading-based club, Eldon Celtic, and Farnborough.
In season 2013/14, Fisher was given his first-team opportunity, making over a dozen appearances at right-back for the Hoops and performing very impressively.