Chris Taylor's strike handed Oldham a deserved victory over Bournemouth.
Shefki Kuqi headed Taylor's free kick onto the crossbar and Cherries keeper Alex Cisak did well to claw Shaun MacDonald's follow-up off the line.
Kieran Lee's inch-perfect ball set up Taylor to slot home the winner from four yards out.
Tom Adeyemi wasted a gilt-edged chance to double the lead before Youssouff M'changama rattled the bar with a stunning 30-yard effort.
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Oldham Athletic manager Paul Dickov told BBC Radio Manchester:
"We made it difficult for ourselves in the second half, in the last 10 or 15 minutes, by inviting pressure on.
"I'll take a little bit of blame for that as I'm constantly saying if we're 1-0 up let's go and make it two.
"We have to manage the game better but we also have to remember there is a lot of inexperience in the team.
"I felt overall we deserved to win over the course of the game we were the better team."
Bournemouth manager Lee Bradbury told BBC Radio Solent:
"We've looked at it on the DVD and it's a stonewall penalty but we haven't had those decisions lately.
"With the injuries we've got at the moment - Donal McDermott and Wes Thomas - we lacked options. I'm looking at that and thinking we don't score enough goals.
"We've played a lot of games Saturday-Tuesday and we've tried to make the recovery process as easy as possible for the squad.
(on Steve Fletcher) "Fletch's opportunities at this club have been very low at this club at this moment in time. He's been a massive part of this club for a long time and he's still got another year left on his contract so we'll see where we go."