Abdoulay Konko will undergo a medical in Rome this Friday before completing his permanent move to Lazio.
The French right-back will join the Biancoceleste in a reported 5million euro deal from Genoa.
The 27-year-old is set to sign a four-year contract with Lazio and is set to replace Stephan Lichtsteiner, who will become a Juventus player later on Friday.
Konko will become Lazio's third summer reinforcement along with German forward Miroslav Klose and Bosnian defender Senad Lulic.
Lazio finished fifth in Serie A and will play in the Europa League this season.