Tottenham No2 Gus Poyet admits "enough is enough" for their error-prone defence, with new signings sure to be made this month.

"This time it's enough - we have to change. It does not look like there is room for improvement so we have to change," he said after the 2-1 defeat to Aston Villa, when both goals followed slack marking at set pieces.

Juande Ramos, the manager, had indicated he would seek to bolster his defensive options during the transfer window, says the Guardian. Urby Emanuelson, the Ajax left-back, and Dani Jarque, the Espanyol centre-half, are under consideration and a deal has already been completed for Chris Gunter, the 18-year-old full-back from Cardiff City.

Poyet said the malaise was collective, with no one player culpable every time. "It's not about individuals," he said. When, week in, week out, it's a different player, it becomes a team problem ... so enough."