Tottenham striker Fernando Llorente says defeat to West Ham wasn't good enough.

The loss is Spurs' last game before the first-leg of their Champions League semifinal against Ajax.

"A tough day for us," said Llorente.

"We didn't play like all the fans deserved. We have to show more because it was a derby and very important going into the Champions League," he said. "I don't know why but we played so badly and we need to improve if we want to beat Ajax.

"We need to wake up everyone because if we play like this on Tuesday we will lose easily. If we play like that against Ajax then for sure we will lose."