1. Lorenzo Insigne
Lorenzo Insigne has hit new heights this season under Carlo Ancelotti and he has been thriving under the Italian manager, player as a striker or a left-winger. With Sarri playing Hazard as a false-nine when required and the player not accustomed with playing at that role, Insigne can fill his role with ease. Also with the added advantage of having played under Sarri previously, he would get into the squad right away.
Although he wouldn't come cheap by any means, it would be money well spent if a player of Insigne's calibre does move to the Bridge in the near future.
Edited by Aniket Kar