Match ends, Colchester United 1, Lincoln City 0.
Leaders Lincoln suffered only their third defeat of the season as they lost at fellow promotion candidates Colchester.
The Imps started brightly as Bruno Andrade's long-range shot flew straight at goalkeeper Rene Gilmartin.
But Colchester warmed to the task and almost went ahead when Kane Vincent-Young showed great skill in the area only to be denied inside the six-yard box.
The U's went in front when Frankie Kent followed up to score at the near post after his initial headed effort from Courtney Senior's corner had been blocked by keeper Josh Vickers.
Colchester skipper Luke Prosser then made a last-ditch tackle to deny John Akinde on the edge of the area just before the break.
In the opening seconds of the second period, Andrade's shot looked goal-bound until it struck team-mate Harry Anderson in the six-yard box.
Vickers denied both Sammie Szmodics and Ryan Jackson after the break and Gilmartin saved well from Michael O'Connor's free-kick in stoppage time, as Colchester claimed a big win.
Report supplied by Press Association.
- 7SeniorBooked at 34minsSubstituted forMandronat 89'minutes
- 45NoubleBooked at 90mins
- 10SzmodicsSubstituted forEastmanat 84'minutesBooked at 90mins
- 9NorrisBooked at 90mins
- 5ShackellBooked at 90mins
- 4O'ConnorBooked at 26mins
- 7PettBooked at 37mins
- 11Carvalho AndradeSubstituted forRheadat 75'minutesBooked at 90mins
- 17McCartanSubstituted forGreenat 76'minutesBooked at 83mins
- David Coote
- Shots on Target
Matt Rhead (Lincoln City) is shown the yellow card.
Second Half ends, Colchester United 1, Lincoln City 0.
Luke Norris (Colchester United) is shown the yellow card.
Foul by Luke Norris (Colchester United).
Tom Pett (Lincoln City) wins a free kick in the attacking half.
Foul by Luke Prosser (Colchester United).
Matt Rhead (Lincoln City) wins a free kick in the attacking half.
Tom Eastman (Colchester United) is shown the yellow card.
Foul by Ryan Jackson (Colchester United).
Harry Toffolo (Lincoln City) wins a free kick on the right wing.
Frank Nouble (Colchester United) is shown the yellow card for a bad foul.
Jason Shackell (Lincoln City) is shown the yellow card for a bad foul.
Frank Nouble (Colchester United) wins a free kick on the right wing.
Foul by Jason Shackell (Lincoln City).
Corner, Lincoln City. Conceded by Tom Lapslie.
Corner, Lincoln City. Conceded by Frankie Kent.
Substitution, Colchester United. Mikael Mandron replaces Courtney Senior.
Corner, Lincoln City. Conceded by Harry Pell.
Luke Prosser (Colchester United) wins a free kick in the attacking half.