Everton have signed Croatia international Nikola Vlasic from Hadjuk Split on a five-year deal worth an initial £8 million but could rise to £10m with add-ons.
The 19-year-old winger impressed Toffees boss Ronald Koeman during a Europa League qualifier against Everton earlier this month and left Croatia's Under-21 squad on Thursday so he could finalise the move.
A delighted Vlasic described his transfer to the Goodison Park outfit as 'the opportunity of a lifetime'.
He said: 'I am very excited about the opportunity to play for this big club.