Former Lazio midfielder Lorik Cana is surprised Sergej Milinkovic-Savic chose to stay this season.
The Serb was linked with PSG, Manchester United and Real Madrid last summer, but eventually chose to stay.
Cana told La Provence: "What do I think of Sergej Milinkovic-Savic? He has achieved two great seasons in the last two years after a year of adaptation.
"Last season, he was really huge. This year is the confirmation and he does not work at full speed yet.
"He has a trick, fantastic feet compared to his size. I thought he would leave this summer, but Lazio managed to keep him.
"They want to give themselves the chance to qualify for the Champions League."