George Baldock showed that an eye for goal runs in the family as he helped keep MK Dons in the play-off hunt.
Baldock, 20, is the brother of current Bristol City and former Dons hit man Sam, 24, and he showed his sibling's predatory instincts in the fourth minute.
Midfielder Stephen Gleeson's 22 yard shot ricocheted off team mate Izale McLeod, but right back Baldock pounced to drill in his first senior goal from twelve yards.
Gleeson teed up the second goal four minutes before the break when Adam Lockwood misjudged his long pass and striker McLeod nipped in behind the defender to stroke in his eighth goal of the campaign.
Latics boss Lee Johnson shook his side up with a triple substitution at the break and striker Charlie MacDonald pulled one back when he out jumped the static defence to nod in a Gary Harkins's 57th minute corner.
Baldock, 20, is the brother of current Bristol City and former Dons hit man Sam, 24, and he showed his sibling's predatory instincts in the fourth minute.
Midfielder Stephen Gleeson's 22 yard shot ricocheted off team mate Izale McLeod, but right back Baldock pounced to drill in his first senior goal from twelve yards.
Gleeson teed up the second goal four minutes before the break when Adam Lockwood misjudged his long pass and striker McLeod nipped in behind the defender to stroke in his eighth goal of the campaign.
Latics boss Lee Johnson shook his side up with a triple substitution at the break and striker Charlie MacDonald pulled one back when he out jumped the static defence to nod in a Gary Harkins's 57th minute corner.
Oldham manager Johnson was seething and blasted:
"I was disappointed with all of them, to a man. I've got no complaints about the result. All I can do is apologise for the first half. It wasn't a nice place to be tonight - Boundary Park. It was unacceptable.
"Maybe we could've equalised, but on the first half performance, we probably didn't deserve it."
Delighted MK Dons boss Karl Robinson said:
"I thought the way the players rose to the challenge was tremendous. I'm so happy because we've got such a small squad and I could only name five on the bench.
"I don't normally get this excited after a game, but to a man they were fantastic.
"I'm made up for George. He's becoming a bit of a hero at the club and it's hard living in the shadows of a brother who is worth millions."