6. Mohamed Salah
Salah is one of the most prolific players in English soccer history. The Egyptian forward starred for Liverpool as he inspired them to a host of honors. But he caused them to sweat in 2022 when he failed to agree on a new contract. He threatened to leave his teammates high and dry because he wanted more money.
Liverpool didn’t want to break their wage structure. But Salah refused to bow down and also threatened to join a rival as a free agent. It put the club in a precarious position because fans expected them to pay their top player (via Liverpool.com).