Mauro Icardi will leave Inter Milan at the end of the season and will attract the biggest transfer fee, according to Italian football agent Federico Pastorello.
The respected deal broker was speaking in the same week that Icardi, at San Siro for the past five years, was linked with a summer move to English giants Manchester United.
Real Madrid have also been tipped to make an approach in the summer, having targeted a new striker as a priority, and Pastorello - agent to the likes of Antonio Conte and Patrice Evra - believes that a summer switch is inevitable.
Speaking to Italian outlet Tuttosport, he said: "The most expensive transfer of the summer will involve Icardi."
Icardi has 18 goals in 22 Serie A appearances this season, leaving him two behind top scorer Ciro Immobile of Roma.
