Mousa Dembele admits Tottenham have surprised even themselves by mounting a title challenge this season.
With eight games of the campaign remaining, Spurs are second in the table, five points behind leaders Leicester.
"Yes, [we're] surprised," said Dembele. "We believe in ourselves but we surprised everyone and of course we are very happy about this.
"The ambitions change during the year, of course."
"We're up there, we play as a team and for us, this is what we deserve and we want to go further, of course."