Brazilian icon Julio Baptista has questioned Fabinho moving to Saudi Arabia at his age.
The 29-year-old could be heading to Al-Ittihad on a massive wage rise, should they agree a fee with Liverpool.
The Reds have counted on Fabinho for several years, but may see the chance to earn 40 million from his sale as too good to turn down.
Baptista told Gambling Zone: "I question if the Saudi Pro League is the right move for Fabinho. It's a tough decision because you never know your best moment to leave. The salary is amazing, but the player has to balance that with what he wants. Does he want money or continue to strive for more in his career?
"I always preferred to strive for more in my career. I received offers from Qatar, but I never considered it because I believe people won't recognise the incredible career you have had.
"They have time to go in three years, Fabinho will only be 32, this is a good age, but now? He plays for Liverpool and he's an incredible player so I don't think this is the right moment for him to move to the Saudi Pro League."