Lazio hope to make Sampdoria wing-back Reto Ziegler their first signing of the summer, as Edy Reja looks to revert back to a 3-5-2 formation.
The Switzerland international is out of contract at the end of the season and has already indicated that he is leaving Marassi.
Ziegler had been strongly linked with Milan in January, but deal never materialised.
If the 25-year-old does join Lazio he will be reunited with his international teammate Stephan Lichtsteiner.
Lazio see Ziegler as the long-term replacement for Aleksandar Kolarov, who left for Manchester City last summer.