The European Super League (ESL) is a "grotesque concept" and goes against everything football stands for, says Aston Villa chief Christian Purslow.
"These proposals do away with sporting merit," Purslow told BBC Radio 4.
Leeds owner Andrea Radrizzani said the ESL plans would "kill dreams of players and fans".
Speaking to the Today programme, Purslow said: "It would enable a small number of clubs to be in this competition come what may and, for millions of people in football, that goes against everything the sport means and stands for.
"The idea is that the uncertainty that comes with sport, that makes it so compelling, that we all love, is actually damaging to the business models of these huge clubs.