Posh came from behind to secure a deserved, yet controversial, win at local rivals MK Dons.
Dons had taken the lead in the 63rd minute when a mishit shot by Ali Gerba was deflected into the net by the diving Craig Morgan.
But four minutes later Posh were awarded a penalty when substitute Dominic Green's cross was handled by Alan Navarro.
Dons were annoyed that Posh played on when their goalkeeper Willy Gueret lay injured on the floor after saving at the feet of Craig Mackail-Smith.
Gueret did initially get to his feet, but appeared to drop down again when seeing the ball had fallen to Green.
And four minutes later the 18-year-old left winger fired home a loose a ball from inside the area to clinch the points.
Posh should have won by more Shaun Batt hit the post twice in the first-half and Gueret saved superbly when Mackail-Smith was sent through by Boyd.
Posh: Joe Lewis, Russell Martin, Tommy Williams, Craig Morgan, Gaby Zakuani, Chris Whelpdale, Micah Hyde, Paul Coutts, George Boyd, Shaun Batt, Craig Mackail-Smith.
Subs: Scott Rendell, Mark Tyler, Chris Westwood, Dominic Green, Charlie Lee.
Mk Dons: Willy Gueret, Carl Regan, Sean O'Hanlon, Miguel Llera, Mark Wright, Shaun Cummings, Alan Navarro, Peter Leven, Ali Gerba, Aaron Wilbraham.
Subs: Nathan Abbey, Jude Stirling, Jermal Johnson, Sam Baldock, Flavien Belson.
Referee: Phil Dowd (Staffs).
Team news and updates will appear here later.
See Monday's Evening Telegraph for a full match report, comment and photos.
What do you think of the Posh performance? Add your comments below, email our sports team: alan.swann @peterboroughtoday.co.uk.Elsewhere online:
Fergie salutes super-sub Green - uk.eurosport.yahoo.com.
The full article contains 291 words and appears in Peterborough ET newspaper.