Sunderland manager Steve Bruce was unhappy after his side crashed to a 3-2 Premier League defeat at Wolverhampton Wanderers on Saturday afternoon.
Kevin Foley opened the scoring for the hosts, but the Black Cats responded in some style through Darren Bent and Danny Welbeck.
However, they couldn't hold on as Stephen Hunt and Sylvan Ebanks-Blake turned the game on its head once again at Molineux.
With centre backs Michael Turner and Titus Bramble picking up injuries recently, Bruce was left to bemoan his side's defensive frailties as they fell to just their third defeat of the campaign.
"We've had a good run up until now but we're back to that horrible moment and we can't give away goals like that," he said.
"Overall we can't be happy with the standard of our defending. Individual errors have badly cost us."