Leyton Orient boss Russell Slade had no complaints about the result after the 1-0 defeat by Sheffield United.
Nick Blackman's 25-yard strike was all that separated the sides but Orient created little, other than a Kevin Lisbie header which was well saved by George Long.
"We deserved to lose the game but they were the best side we've played this season," said Slade.
"You only have to look at their record to know they are a difficult side to beat.
"It was a tight affair but we've lost to a good side."