Tottenham midfielder Mousa Dembele says they must stay positive after their Champions League defeat to Inter Milan.

Spurs go to Brighton hoping not to turn three defeats into four.

"We need to keep heads up because there were a lot of positives," said Dembele.

"We need to continue. We can't leave it like this.

"I understand everyone is disappointed but we need to turn this around now, there's not too much time."