Arsenal, Chelsea, Liverpool, Manchester City, Manchester United and Tottenham Hotspur are among the 12 clubs which have agreed to join the proposed European Super League (ESL).
The Premier League have condemned the move along with Prime Minister Boris Johnson and FIFA.
In a statement, the Premier League said: “The Premier League condemns any proposal that attacks the principles of open competition and sporting merit which are at the heart of the domestic and European football pyramid.
The Premier League has called a meeting tomorrow morning of the 14 clubs, including Newcastle United, who are not part of the ESL discussions, according to the PA news agency.
Shearer, the Premier League’s record goalscorer, has hit out at the proposals via Coral. The former United striker labelled the plan a “hand grenade” – and he called on the Premier League to block the move.
“These 12 clubs dropped a huge grenade on the sport with this announcement, and the Premier League should respond with a grenade of their own and say ‘OK, you’re going to be banned from the Premier League from next season’,” said Shearer.
"That’s how they should deal with this. These clubs want to have their cake and eat it, they think they can play these Super League games in midweek, and their domestic leagues at weekends, but I hope the leagues say ‘no, that’s not happening’.”
Newcastle are understood to “strongly oppose” the planned breakaway, which has drawn widespread criticism.