Playing part-time means the final whistle is only the start of the real grind....

https://www.pieandbovril.com/general/the-physical-reality-of-scottish-football-what-happens-after-the-final-whistle

Playing part-time means the final whistle is only the start of the real grind. You drag yourself off a heavy, sodden pitch to face a Monday morning shift while your body is still screaming