The 23-year-old Serbian has come of age at Hertha Berlin this season, where he has emerged as their best midfielder.
He has four goals in 20 appearances, while Hertha legend Pal Dardai called him the best midfielder at the club in 20 years.
What is clear is the Serbian is a wanted man this summer.
And according to the Mirror, if a club offers in the range of €40 million, they can sign Grujic this summer.
While Liverpool could integrate him into the first team squad, Klopp is happy to use the money from a sale on other players.