A second half opener from Billy Sharp, as well as a Callum Morton own goal, handed Sheffield United the three points at London Road.
The loss means Posh now have only one win in their last 13 Championship matches and remain in the relegation zone.
They now face an FA Cup clash with QPR before returning to league action against Cardiff City.
Here are the best of today’s transfer rumours...
They now face an FA Cup clash with QPR before returning to league action against Cardiff City.
2 / 3