If friction didn't exist the players would need to run into something in order to stop and turn. This would also be the same problem for the ball and although the players could kick it around at first it would eventually leave the boundaries of the field. This would also likely happen to the players although possibly sooner than would happen to the ball. Essentially the game would become nearly impossible to play without changing the nature of the field and possibly the rules of the game.
Chat with our AI personalities
it would be very hard because you wouldn't be able to grip onto the ground you are playing on so you would slip over a lot. the ball would just slide around if you kicked it and you wouldn't be able to control it.