The 25-year-old is currently on loan with Porto, making 33 appearances for the Portuguese giants during the 2020-21 campaign, including 17 outings in the league.
As it stands, Grujic is due to return to Anfield this summer, and he has a contract with the reigning Premier League champions until the summer of 2023.
The Serbia international's future continues to be called into question, though, with Porto believed to be keen on signing him on a long-term basis.
According to O Jogo, Liverpool want to make a profit on the midfielder and would therefore demand a fee of between €15m (£13m) and €20m (£17.3m) from interested clubs.
Grujic has only made 16 appearances for his parent club since arriving from Red Star Belgrade. body check tags ::