Lazio are in talks with Chelsea over a deal for Mario Pasalic.
The midfielder has returned to Cobham for the start of preseason after a season away in Italy with AC Milan.
Pasalic is the subject of a €2.7 million offer from Galatasaray, but he could yet return to Serie A next season.
Lazio have opened negotiations about a new loan arrangement for the midfielder.
Chelsea management would prefer a straight sale, with Pasalic not in the long-term plans of manager Antonio Conte.