Northampton Town were beaten 2-0 by local rivals Peterborough United at the PTS Academy Stadium.
Nathan Thompson and Reece Brown scored the goals for the visitors, who grabbed their first away win of the season and condemned the Cobblers to a third consecutive reverse in league action.
The result means Northampton are also looking for a first home win back in the third tier, with their home wins so far coming in the knockout tournaments.
Before the game, both sides paid tribute to Tommy Robson, a former player for both sides of this divide who sadly passed away this week.
Peterborough started on top, with Sammie Szmodics and Siriki Dembele both denied by Stevie Arnold. But Northampton were able to respond in kind, with their own pressure period seeing Danny Rose and Sam Hoskins denied by Christy Pym.
The opening goal came after 33 minutes, as moments after Jonson Clarke-Harris saw a shot denied, a low pass by Dembele released Thompson, who beat Arnold.
Peterborough then had the majority of play and chances from there, but were unable to beat Arnold until the final stages of the game.
The second goal that sealed the contest in the away side’s favour came inside the final 10 minutes, when Brown fired a snapshot past Arnold, despite home protests of handball. That ended Northampton’s hopes of salvaging things, as the away side toasted their win.