Jose Mourinho has agreed a stunning £80million summer deal for Sergej Milinkovic-Savic according to the Sun.
The 23-year-old has been one of the most impressive players in this season's Serie A.
He is considered to be one of the most talented midfielders in Europe and has offers from champions Juventus as well.
Meanwhile, former Lazio man Stefano Fiore believes the Serbian is worth at least £60million.
"Given the figures that are now involved in football, he is worth the money because of the quality and characteristics he possesses," Fiore told RMC Sport.
"I also watch a lot of foreign football but players like him are not there.
"An auction will open and we'll see what happens, but if a defender can go for €70m [£61million] in England then Milinkovic-Savic is worth much more.
"That said, the market has gone crazy and should return to more normal figures."
