Left on the bench for their draw at Leeds, Salah spoke to reporters afterwards and accused someone inside the club of wanting to push him out. He also declared having "no relationship" with manager Arne Slot.
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"Arne Slot has to show his authority and pull him in and say 'you are not travelling with the team, what you said is not acceptable'," said Rooney in his latest podcast episode.
"Take yourself off to Afcon and let everything calm down. If I was him there would be no way he would be in the team.
"It needs to be sorted out quickly either way."
Rooney also stated: "He is absolutely destroying his legacy at Liverpool.
"It would be sad for him to throw it all away. He's gone about it all wrong."