Pompey's winless run in the league was stretched to three games with a narrow loss at MK Dons.
The home side were dominant before the break and Gavin Bazunu made a series of fine saves to deny them.
But Danny Cowley's men improved in the second half and were enjoying their best spell of the contest when Ethan Robson scored the game's only goal against the run of play.
Fans can watch the key moments (top video) or register with iFollow for extended highlights (middle video) and a full match replay (bottom video).
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