Liverpool could lose around £10million on Alberto Aquilani if they allow the midfielder to join Juventus permanently this summer.
The News of the World reports that a £14million buy-out clause in the 26-year-old midfielder's Reds contract has now expired.
Aquilani was a big hit while on loan with Juve in Serie A this season but the Old Lady is said to be willing to pay only £8million to keep him in Turin.
Aquilani's agent Franco Zavaglia has already said that he believes there is only a 50/50 chance of his client signing for Juve permanently.
Now Liverpool must decide whether to cut their losses on a player who scored one goal in 18 appearances under Rafa Benitez in 2009/10.