Kevin Blackwell was a relieved man after seeing his Sheffield United side squeeze past lowly Norwich City 1-0 at Bramall Lane.
The Blades made things difficult for themselves against Norwich after failing to build on Darius Henderson's 17th-minute opener.
Blackwell would have preferred to get a second goal that would have finished off the Canaries so was pleased his defence kept things tight at the back.
"I think if we'd have taken our chances, we'd have made it slightly easier but we didn't," said Blackwell.
"Norwich have the ability to come back so it was important we kept our concentration at the end. The clean sheet is a big one."
Under-fire Norwich boss Glenn Roeder had few complaints about his side's performance and felt a share of the spoils would have been a fair outcome.
"It was a very good performance against a club whose expectations are to get promotion," said Roeder.
"We gave them a proper game and it's quite unbelievable that we didn't get anything from it. Even the referee said that we deserved at least a point."
Roeder revealed that he has not given up hope of re-signing striker Leroy Lita who recently completed a successful spell on loan from Reading.
"At the moment Reading want to keep him and we have to live with that," he continued.
"But we're still fighting hard to try to bring him back and have made an exceptionally good offer to get him back for the rest of the season."