Piero Mingoia's late strike handed Cambridge United a 2-1 victory at Stevenage that kept them in the Sky Bet League Two play-off places.Boro have struggled at home this season, and it was easy to see why when Leon Legge was allowed a free run to powerfully head home Harrison Dunk's corner to give the visitors the lead.An instant leveller almost came from Matt Godden, but Will Norris was alert enough to make a point-blank save before gathering the tame follow-up effort.Ben Kennedy levelled the scores with a low curling shot early in the second half, with poor marking from a free-kick allowing him space to fire at goal.The visitors came close to going in front a second time, but Luke Berry was denied by the inside of the post as the U's continued to search for a winner.And that deciding goal finally came when Jamie Jones spilled a cross to Mingoia, who hammered the ball high into the net with less than 10 minutes remaining.