Goals from James Hanson and Kyle Bennett see Bradford City deservedly claim a first away win since November.
Colchester pick up their first win in seven games at the expense of Coventry City in League One.
Colchester striker Sanchez Watt has a goal disallowed as his side earn a point against promotion-chasing Rotherham.
Leyton Orient lose their place at the top of League One despite edging to a narrow win at home to Colchester.
Fixtures, Results & Competitions
Chris Porter's second-half penalty helps Sheffield United beat Colchester and secures a sixth straight win.
A late own goal from Colchester captain Brian Wilson hands promotion-chasing Preston victory in Essex.
Colchester defender Josh Thompson's prospects of playing again this season dimish after a problem with his recovery.
Two goals from captain Doug Loft see Port Vale revive their play-off hopes at the expense of a rusty Colchester United.
Saturday's League One game between Colchester and Rotherham is postponed because of a waterlogged pitch.
Saturday's League One match between Peterborough and Colchester is postponed because of a waterlogged pitch.
Tuesday's League One game between Colchester and Shrewsbury is called off, four hours before the scheduled kick-off.
Colchester United sign young Leicester City central defender Alie Sesay on loan until the end of the season.
League One side Colchester United complete the signing of Chelsea keeper Sam Walker on an 18-month contract.
Sanchez Watt scores a first-half brace as Colchester ease to a comfortable away win at Carlisle in League One.
Colchester United teenager Alex Gilbey signs a new deal, four months after rejecting an initial contract offer.
Colchester United extend the contract of former West Ham midfielder Dominic Vose until the end of the season.
Clinton Morrison scores only his third goal in 52 appearances to help Colchester seal victory over Gillingham in League One.
Colchester midfielder Andy Bond has his contract terminated by mutual consent five months before it was due to expire.
Colchester United extend the loan spell of Everton defender Luke Garbutt by a month until early February.
Colchester's on-loan goalkeeper Sam Walker makes a string of saves to earn his side a draw against MK Dons.