Christian Eriksen and Roberto Soldado went close for us in the first half, while the visitors nearly snatched the lead 12 minutes from time when a corner fell kindly to substitute Jason Puncheon and he smashed a shot against the crossbar with Vertonghen clearing the danger.
Goalkeeper Hugo Lloris then pulled off a fantastic diving save to keep out a shot from Yannick Bolasie as the spoils were shared.
Spurs: Lloris, Dier, Vertonghen, Fazio, Davies, Mason, Bentaleb, Mason (Paulinho 66), Lamela (Chadli 46), Kane, Eriksen, Soldado (Lennon 83). Substitutes (not used): Vorm, Rose, Kaboul, Stambouli.
Palace: Speroni, Kelly, Dann, Hangeland, Ward, Bolasie, Jedinak, Ledley, McArthur, Zaha (Puncheon 66), Chamakh. Substitutes (not used): Hennessey, Delaney, Bannan, Thomas, Gayle, Campbell.
Yellow cards: Spurs – Eriksen.
Referee: Lee Mason.