Lazio have accepted Al-Hilal's €40 million offer for Serbian midfielder Sergej Milinkovic-Savic.
The 28-year-old is set to undergo a medical in the coming hours, as reported by Tribal Football.
He will sign a three-year contract with an option to extend for another year, and will earn €20m annually.
The Serbia international has featured in 341 games for Lazio since his arrival from KRC Genk in 2015 for €12m.
Al-Hilal have already signed Ruben Neves from Wolverhampton, and Kalidou Koulibaly from Chelsea this transfer window.
The Saudi Pro League has managed to attract high-profile stars in recent months like Cristiano Ronaldo (Al-Nassr) and Karim Benzema (Al-Ittihad) in a push to elevate the league's overall level.
