The organisation representing Europe's leading clubs has rejected calls for the World Cup to be expanded, reports BBC Sport..
Earlier this month, Fifa president Gianni Infantino proposed a 48-team tournament consisting of 16 groups of three countries each.
The European Club Association (ECA) say the number of games played in a year is already at an "unacceptable level".
"We urge Fifa not to increase the number of World Cup participants," said ECA chairman Karl-Heinz Rummenigge.
He added: "We have to focus on the sport again. Politics and commerce should not be the exclusive priority in football."
The ECA represents more than 200 clubs, including Real Madrid, Barcelona, Juventus, Bayern Munich, Manchester United and Chelsea.