When I first started watching the Rams there wasn't even one substitute. If a player was injured it was up to the trainer to get him mobile again. He would run on to the pitch carrying a bucket of water and a 'magic sponge' and a shoulder bag with bandages etc. A quick splash of cold water and the player would usually be alright to continue. On field treatment was very primitive back then. Occasionally, if the injury was serious, the player would be carried off on a stretcher to sympathetic applause and play would continue with his team now down to 10 men. Sometimes the injured player would stay on but wouldn't be able to perform effectively so would go on the wing and hobble about trying to be of nuisance value..How times have changed.