Marko Grujic may not be signing a 7 million euros ($7.6 million) contract with Liverpool after all. The reason: His father keeps his passport.

Red Star Belgrade, the 19-year-old Serbian midfielder's club, has reportedly agreed on a five-year deal, and he was to travel to Liverpool for medical checkups.

Grujic's father however says he should remain at Red Star until the end of the season when his price will be bigger.

"His passport is with me, and he is not going anywhere," Goran Grujic told Belgrade media.

He accused Red Star management of forcing his son to leave because of the club's deep financial problems.

Red Star says in a statement on Wednesday that if it doesn't get the funds from Grujic's transfer, the club will collapse financially.