Davy Klaassen believes Tottenham's Davinson Sanchez can become one of the world's best defenders.

Since September, the Colombian centre-back has thrived in the absence of the injured Jan Vertonghen.

And Klaassen, who played alongside Sanchez at Ajax, believes his former teammate can only improve.

"I think [Davinson Sanchez] does great at the moment," Klaasen told Goal. "I think from the beginning he was so good and I have no doubt that he will be a top, top player.

"I don't know where he will go after this, but I'm sure he'll be one of the best defenders in the world."