Chris Moore marked his full league debut with a late goal to help Brentford secure a win at Northampton.
Keeper Lee Harper gifted Moore the winner as he tried to allow the ball to run out for a goal kick, only for Moore to steal possession and score.
Brentford's Moore came close with an overhead kick and also missed with an effort in the second half.
Northampton's new signing forced Stuart Nelson into a flying save late in the second half.
Northampton: Harper, Crowe, Chambers, Doig, Holt, Bojic (Bradley Johnson 85), Taylor (Quinn 76), Burnell, Aiston, McGleish, Kirk.
Subs Not Used: Jess, Bunn, Dyche.
Booked: Aiston, Doig.
Brentford: Nelson, O'Connor, Heywood, Frampton, Charles,Tomlin, Skulason, Pinault (Griffiths 76), Tillen, Kuffour (Ide 90), Moore (Rhodes 79).
Subs Not Used: Brooker, Masters.
Goals: Moore 71.
Ref: D Deadman (Cambridgeshire).