Nine-man Cambridge came back from the dead to grab a point in a 2-2 draw at Lincoln.

Cambridge went in front with a fourth-minute goal from midfielder Luke Guttridge, but Lincoln levelled in the 34th minute when a long-range shot from Ben Sedgemore was flicked in by new signing Richard Butcher.

Cambridge had Terry Fleming dismissed for a second booking in the 64th minute, and almost immediately Simon Weaver fired Lincoln in front.

Guttridge then followed Fleming when he was red-carded for a 71st-minute challenge on Paul Smith.

But Paul Wanless hit a 78th-minute equaliser moments after replacing Franco Nacca.

Lincoln were themselves reduced to 10 men when substitute Scott Willis was dismissed for a head-high challenge on Wanless.

Lincoln City: Marriott, Bailey, Morgan, Futcher, Weaver, Smith, Sedgemore, Butcher, Bimson, Yeo, Watts. Subs: Pettinger, Cropper, Pearce, Willis, Cornelly.

Cambridge Utd: Marshall, Tann, Duncan, Goodhind, Jordan, Nacca, Guttridge, Fleming, Tudor, Kitson, Riza. Subs: Brennan, Wanless, Youngs, Chillingworth, Bridges.

Referee: E Evans (Manchester)