The 17-year-old forward, who was released by their north London rivals Arsenal a year ago, will join up with Spurs' academy on a deal until 2025 after they beat Brentford to his signature.
The deal includes both performance-related add-ons and a sell-on clause, the Blades have confirmed.
Lankshear was prolific as captain of Sheffield United’s Under-18 side, who won the Professional Development League national title last season after an unbeaten campaign, and he has also played and scored for their U23s.
Sheffield United confirmed the deal includes performance-related add-ons and a sell-on clause.
🙌 We are delighted to announce the signing of Will Lankshear from Sheffield United.
The 17-year-old forward has agreed a deal that will run until 2025 and will join up with the Club’s Academy.
— Tottenham Hotspur (@SpursOfficial) August 31, 2022
The teenager is considered one of the best prospects in the country in his age bracket, and will join an academy already boasting promising forwards Dane Scarlett, Troy Parrott and Jamie Donley.
Lankshear can expect to compete for Spurs' U23 side this season, with Scarlett and Parrott currently out on loan at Portsmouth and Preston, respectively.
Scarlett in particular has impressed with third-tier Pompey, scoring in back-to-back games against Port Vale and Crawley.