It all seemed to be going so well for Tottenham - 2-0 up at half time and comfortable - and then West Ham only went and scored three second half goals to progress to the next round of the Carabao Cup.
Strikes from Moussa Sissoko and Dele Alli had put the home team in a solid position, in the first half, but an Andre Ayew double and an Angelo Ogbonna header turned the game on its head.
Questions will unsurprisingly be asked regarding Mauricio Pochettino's team - who left Harry Kane out of the matchday 18 - and the result also relieves some of the pressure on West Ham manager Slaven Bilic.