Casey was part of the furniture at Northampton Town from 1985 until his retirement as first team physio in 2008.
First appointed to the role of physio by Graham Carr, he was the trusted medical man for a string of Town managers for a period of 23 years.
Casey saw was sat on the sidelines as the Cobblers went through many highs and lows, and here we publish a selection of pictures from his time with Town.
Pete Norton was the club photographer throughout Casey's time as physio, and captured him on many occasions over the years.
Here are some of the many images Pete has taken, starting with his first 'head shot' after he took the job 35 years ago.
1. New face at the Cobblers
A fresh-faced Denis Casey poses for his first 'head shot' as Cobblers physio back in the summer of 1985 Photo: Pete Norton
2. On the bench...
Denis Casey on the bench for a match at Port Vale, along with Clive Walker, Graham Carr and Trevor Morley Photo: Pete Norton
3. Man at work
Denis Casey treats Graham Reed in the physio room at the Cobblers old club offices on Abington Avenue Photo: Pete Norton
4. Getting involved
Denis Casey gets involved in a training session by playing in goal Photo: Pete Norton