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Key points

• Russell Slade's side take the lead in the second half through David Mooney's sixth goal of the season. The striker heads in their second to double Orient's lead. 

• Leyton Orient added their third goal when substitute Michael Symes netted a penalty. 

•The O's make six changes for the clash with Scott Cuthbert returning from injury and a rare start for goalkeeper Jamie Jones.

Northampton Town Nicholls; East, Langmead, Tozer, Widdowson; Huws, Harding, Robinson (Hackett, 69), Demontagnac (Mukendi, 78); Platt, Moult (Akinfenwa, 69)

Subs not used: Snedker, Hornby

Leyton Orient Jones; McSweeney, Baudry, Cuthbert, Sawyer; Cox, Griffith (J Smith, 50), James (A Smith, 83), Odubajo; Brunt, Mooney (Symes, 66)

Subs not used: Allsop, Obafemi