Pep Guardiola has warned football is going to "kill" players by demanding too much of them.
The Manchester City boss was speaking a day after FIFA president Gianni Infantino reported a plan to expand the World Cup finals to 48 teams from 2026 had been met with enthusiasm.
Guardiola is in favour of increasing the number of substitutes that can be used during games to give players more of an opportunity for a rest.
He said: "It's not just English football, it's all around the world. Now they talk about a World Cup of 48 teams - we are going to kill the players.