Norwich City head coach David Wagner says that it was a very disappointing performance as his side were beaten away to Millwall.
Tom Bradshaw's first-half goal condemned the Canaries to defeat away at The Den in the Sky Bet Championship.
"Overall, I thought we were poor," Wagner said. "I think we started well, maybe the first 20 minutes, where we played in the right areas.
"After we conceded the goal, we have not done what we've done before. We had ball possession, but never attacked the spaces and put the balls into the box.
"Especially in the second half, we just weren't good enough. We started to fight with the referee and with individuals, we really played into their cards. It was very disappointing.
"At the end of the day, goals can always happen in the Championship. And we've reacted quite often well after we concede, but today we haven't done what we have done before.
"Especially in the second half, we totally played into their cards. We have so many experienced players on the pitch who know exactly what it means to play Millwall away.
"At the end of the day, if you have a lot of ball possession but don't attack in behind, it's just possession without end product. That's not what we like, football is about attacking and scoring goals."