Tottenham have rejected an opening 10m euros (£8.4m) bid from AC Milan for defender Emerson Royal.
The right-back, 25, was subject of a verbal and then written offer, which was swiftly rejected as the asking price is believed to be double that initial bid.
There has been no subsequent contact, with reported rival interest from Borussia Dortmund and clubs in Saudi Arabia.
Spurs are open to keeping Brazil international Emerson but have scoured the market for contingency options should he leave.
One player being considered is Brest defender Bradley Locko.
The club’s priority remains signing a forward after the arrival of midfielders Archie Gray and Lucas Bergvall, with Timo Werner's loan move from RB Leipzig also being extended.
Ange Postecoglou is currently overseeing pre-season as the club aims to build on a fifth-place finish last season.
Spurs play friendlies against Hearts and Queens Park Rangers this week before a tour of Asia.