Medics from both teams and emergency service attended to the right-back and rolled him on to his front.
Knoyle, 27, was given oxygen on the pitch and the medical teams spent a few minutes providing him with assistance.
He was then taken off the pitch on a stretcher and went straight to an ambulance which took him to hospital.
Stockport announced Knoyle was taken to hospital as a precaution and is conscious and responding well following his head injury.
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Manager Dave Challinor spoke after the game and said he and everyone at the club are keeping Knoyle in their thoughts.
He also spoke about the need for his players to improve communication with each other following the clash of heads.
The match was re-started with Stockport in search of an equaliser after George Maris put the visitors ahead.
Fifteen minutes of stoppage time were played at the end of the game because of the lengthy delay.
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