Mansfield survived a late scare to win 3-1 at Barnet in a game which saw both sides finish with 10 men.The Stags' Bermudan winger Reggie Lambe opened the scoring in the 31st minute, lobbing over Bees goalkeeper Jamie Stephens and into the top-right corner after racing on to Chris Clements' flick-on.Barnet were reduced to 10 men seven minutes before the break when right-back Josh Clarke scythed down goalscorer Lambe and was shown a second yellow card.Town top-scorer Matt Green doubled the advantage with an hour played, latching on to Craig Westcarr's pass and slotting left-footed into the bottom-right corner.Bees substitute John Akinde halved the deficit with 13 minutes to play, sending Brian Jensen the wrong from the penalty spot after being brought down by the Stags goalkeeper.Town midfielder Clements was dismissed for a second bookable offence following a challenge on Shaun Batt in the 82nd minute and Barnet almost took advantage to claim an equaliser when Jensen parried Elliott Johnson's powerful drive from distance.But it was the visitors who wrapped the game up with two minutes to play when Barnet defender Michael Nelson put the ball into his own goal following a goalmouth scramble.