The German is understood to be fuming with Klopp’s decision to bring in Alisson from Roma and will review his options ahead of the forthcoming campaign.

Karius is also believed to be shocked by the lack of clarity over Klopp’s decision to bring in a new goalkeeper this summer.

Klopp has openly admitted that Alisson will be his new No 1 and the future appears bleak for Karius, who was unconvincing in the 3-1 defeat to Borussia Dortmund in the pre-season friendly in Charlotte on Sunday.

“Of course it's not perfect for me, but I cannot say much more about it either,” he said.

“I do not know that, I cannot say what I'm doing right now, there's still some time left [in the transfer window].”

After the game Karius also took aim at his critics with an Instagram post by writing: "To those who take joy in seeing other people fail or suffer, I feel for you. Whatever it is that's happening in your life to hold this much anger and hate, I pray that it passes and good things come to you."

Liverpool will fly to New York on Tuesday ahead of their second International Champions Cup game against Manchester City the following day.