A Kieran Richardson strike was not enough for The Black Cats, who could not build on their 4-0 win over Stoke last weekend.
The Bantams boss was particularly unhappy with his side’s inability to hold onto the ball.
“We didn’t pass it as well as we normally do, we gave the ball away too cheaply, which is one thing which we have improved on, especially after the performance against Stoke,” he told Sky Sports after the match.
“Today we had too many people that gave the ball away too cheaply, well for me anyway.
“We made a rally towards the end, but we needed to score maybe a little earlier and then it might have been a bit different. But overall I’m slightly disappointed with it,” he stated.
Bruce was also unhappy with the manner of the home side’s second goal, which effectively ended the game as a contest.
“Well the timing, straight afterwards we’ve switched off and not gone with runners and not the done the basics, and the first one was exactly the same.
“They played a one-two down the side of us and we’ve switched off for that minute, and that’s what it takes.
“But fair play to Norwich and the crowd and all the rest of them. It was going to be a difficult one, and one in which we needed to play well on the night, and unfortunately we didn’t do that,” he concluded.
Sunderland will look to regroup back at the Stadium of Light, as they take on West Brom next Saturday.
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