Graeme Souness has attacked Jack Sullivan’s Twitter activities describing his behaviour as “unacceptable.”

The former Liverpool star and Sky TV pundit has opened up to the Sunday Times on issues in the game which he sees as wrong.

He declared that the best two examples of player power undermining managers in recent seasons are Jose Mourinho at Chelsea and Claudio Ranieri at Leicester whom he says were both “both disgracefully sacked the season after winning the Premier League

He added: “That’s the power of the modern player. If you fall out with a couple of them, you are toast. The board stop valuing your opinion and start to pay attention to the opinion of others.”

He then turns his fire on the West ham chairman’s youngest son saying: “Look at the West Ham situation, where you have Jack Sullivan, son of the owner David Sullivan, on social media criticising the manager’s selections, substitutions and signings. All of that is unacceptable.”