The 25-year-old's agent Ulisse Savini claims Liverpool is the most likely destination for his client but admits there is no rush to do a deal.
"Liverpool is our first option for June," Savini told tuttomercatoweb.com.
"It's in issue in progress and we have to talk yet.
"Everyone knows that the contract is expiring. Also, Lazio know there is no hurry.
"We'll see in the coming days. However, it would be hard to say no to Liverpool."