Josh Onomah fired us ahead in the first half and, after some impressive stops from goalkeeper Tom Glover, substitute Kazaiah Sterling completed the scoring in the closing stages of the game.
Spurs: Glover; Walker-Peters, Carter-Vickers, Maghoma, Walkes; Amos, Owens (Sterling, 58); Stylianides, Onomah, Azzaoui (Edwards, 75); Harrison. Unused subs: Whiteman (GK), Muscatt, Daly.
Chelsea: Collins; Aina, Tomori, Colkett, Dasilva; Sammut, Musonda, Scott (Palmer, 56); Abraham, Solanke, Brown (Boga, 65). Unused subs: Thompson (GK), Grant, Ali.