Lee Butcher's injury-time penalty save helped 10-man Leyton Orient claim a vital victory against Notts County.
Orient took the lead as Stephen Dawson pounced on an error from Jeff Hughes and chipped goalkeeper Stuart Nelson.
Jonathan Tehoue made it 2-0 after another defensive mistake, this time from Mike Edwards, before Lee Hughes pulled a goal back with a neat finish.
Leon McSweeney was sent off for the O's when he brought down Jeff Hughes, who had his penalty saved by Butcher.
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Notts County manager Martin Allen told BBC Radio Nottingham:
"We can't afford errors if we want to challenge and stay up where we are.
"The one error in the first half allowed them to have a one shot at our goal. That put them 1-0 up and that is hard.
"I thought the response from the players was fantastic, very passionate. We still tried to pass the ball and get it into the right area, and then an error has cost us dear again."
Leyton Orient manager Russell Slade told BBC London 94.9:
"There have been times at the beginning of the season where we felt a little bit hard done by. Today it was a bit of a smash and grab.
"To be honest we didn't deserve all three points but we stayed in the game despite Notts County pressure.
"We had very few chances through out the game but we hung in there."