Interim head coach Barry Corr is well aware of the threats posed by tomorrow’s opponents Peterborough United – but he is also backing his Cambridge United side to ask some questions of their own during tomorrow lunchtime’s Sky Bet League One derby at the Cledara Abbey Stadium. While their league form has tailed off in recent weeks, sixth-placed Peterborough remain the division’s leading scorers this term having found the back of the net on 60 occasions from their 32 outings. But Cambridge also showed a welcome goalscoring touch during Corr’s previous temporary stint in charge back in December …