The Daily Mail reports that an Al Ittihad delegation traveled to London at the weekend to make a fresh bid for Mohamed Salah.
They have prepared a bid of €250 million for Liverpool after a previous bid of €180 million was rejected last Thursday.
They believe the Egyptian would be open to joining them if the Premier League giants accept their offer.
Jurgen Klopp insisted last weekend that the forward, who has a contract with the club until 2025, showed no signs of wanting to leave Anfield.
The Saudi Arabian League transfer window closes on September 7 and the outlet adds that Al Ittihad could pull out on Tuesday if Liverpool do not accept the offer.
Salah would become the highest-paid player in the world, but he will not leave Anfield without the club’s approval.