Lazio chief Igli Tare says an agreement is in place with Stefan De Vrij.
The Holland defender's current deal runs to the end of this season.
"I prefer not to talk about this tonight, there will be a communiqué soon to that effect," Tare explained to Mediaset Premium.
“It's more in than out though. There is complete agreement with the player, the problem is with his agency but these are bureaucratic matters.
“It's a never-ending story but we'll decide soon."