Doncaster created little in either half and gifted their opponents two goals through errors by goalkeeper Jonathan Mitchell.
All in it was another afternoon to forget at the Eco-Power Stadium.
Scroll down for our player ratings.
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Mitch Pinnock holds back Charlie Seaman. Photo: Bruce Rollinson
. Jonathan Mitchell - 4
Made two howlers which both led to goals. Saved the team from further embarrassment with a good second-half save from substitute Tete Yengi. Photo: Tony Johnson
. James Brown - 4
Replaced in the first half due to injury but had been poor until that point. Photo: Mark Fletcher
. Charlie Seaman - 5
One of Doncaster's better performers in the first half. Looked more dangerous after switching to the right but faded after the break. Photo: Andrew Roe/AHPIX LTD
. Tom Anderson - 5
Needed to get the game by the scruff of the neck with his team struggling for confidence. Photo: HOWARD ROE
. Tommy Rowe - 6
Did his bit to restrict Northampton to relatively few chances, but in the end they didn't need many. Photo: Andrew Roe/AHPIX LTD
5. Tom Anderson - 5
Needed to get the game by the scruff of the neck with his team struggling for confidence. Photo: HOWARD ROE
6. Tommy Rowe - 6
Did his bit to restrict Northampton to relatively few chances, but in the end they didn't need many. Photo: Andrew Roe/AHPIX LTD
7. Joseph Olowu - 5
Looked shakier than usual as the team's nerves appeared to transmit onto him whenever he was on the ball. Photo: Tony Johnson
