Sunderland manager Ricky Sbragia admitted his team`s morale had been hit by the 3-1 defeat to Portsmouth which leaves them still in relegation danger.
Kenwyne Jones put the Black Cats ahead at Fratton Park, but John Utaka levelled before an own goal from Phil Bardsley after an error from Anton Ferdinand made it 2-1.
Armand Traore completed the scoring and Sbragia said: "I thought the first goal was a bit unlucky but the second goal was a bad error and that killed us off.
"Anton tried to control the ball with the sole of his boot. He is better than that.
"I thought in the first half we did reasonably well and created a few chances but it was the same old story, we didn't finish them. We went 1-0 up and really we should try and see the game off but we didn't do that.
"The boys are down. We came here and thought we had the chance to get something. We created chances but didn't take them and they come back to punish you."