At just 140 pages, I laughed to myself throughout. Improbable characters are somehow very familiar. Apart from Doctor Kossuth, you'll meet the Chairman of the team (and chair of every committee in the village as well as a successful beet farmer) Mr Fangfoss; Alex Slingsby (short career professional footballer and team captain, and various other colourful characters.
J L Carr who died in 1994, is more famous for another short book, A month in the Country. He was a schoolteacher for many years, and produced a lot of short novels. The style is 1920s, rather than 1970s when this was first published and you might like a dictionary for a few words no longer in common usage. But it doesn't matter. If you are outside the UK and an anglophile, you might just enjoy this! (and you don't need to know the rules of football either). If you like football at all, you might enjoy it; if you want to be amused, you might enjoy it. You just might enjoy it and have a few quiet chuckles to yourself just because you came across it.