The Holland defender's contract expires at the end of this season.
“We have always said that people come and go but Lazio remains," Lotito told Radio Incontro Olympia.
“I hope this does not apply to presidents!
“It depends on the ethics and behaviour of the player.
“As a club we have always behaved very well towards the players and we'll see what the players choose.
“We are used to enforcing our rights whilst always respecting the rules."