(In secret to the whole world)
After the match, the players take off their football uniforms and they are taken to the dry cleaner later sold to the market, therefore, it is cheaper in the markets
I watched a lot of reviews about football stadiums, bases and many great teams and the biggest clubs, and so, everywhere the uniform is washed in the laundry, but at a football match the players should have at least 2 sets of the same uniform, in case 1 set will break.
An acquaintance from the Moscow team said that in the capital and large cities players have two new sets for each game, and if the shirts are not exchanged and they remain clean, the same sets are given for the next game. Moreover, both his teammates and he himself gave T-shirts to the fans almost after every game.
Several years ago, one of the Moscow Lokomotiv footballers said that a limited number of kits were given for the season. And if they want to give their T-shirt to loved ones or need an extra one, they will have to go to the store.
It is necessary to clarify what you mean by the phrase "major football league". If this is the top football league in England, France, Spain or even Russia, then yes, the technical sponsor of the teams in the vast majority of cases provides a new set of equipment for each game. But if this is the top football league of Zimbabwe or Bangladesh, then the likelihood of a post-match change of equipment is extremely low. And, as the commentator pointed out above, now in all prestigious championships there is a tradition of exchanging T-shirts after a match as a keepsake.
It would be strange to argue from your belfry with the person who unsubscribed above, but it seems to me that for every game the players come out in a new set. At least in new jerseys, because after the final whistle, the players almost always exchange them.
Of course, the uniform must be washed and cleaned by a professional dry cleaner. On the other hand, if the clothes have suffered irreparable damage (falling onto the lawn, hitting with a boot), they change to a new one.