Northampton manager Ian Sampson has doubts over three key players ahead of the visit of Barnet.
Sampson witnessed his side hammer Crewe 6-2 on Tuesday night but also saw full-back John Johnson (knee), captain Andy Holt (calf) and striker Leon McKenzie (thigh/hamstring) limp off.
Sampson said: "The three players that came off on Tuesday night are all major doubts.
"Johnno is the most likely out of the three to make it but I think Leon and Andy are both very doubtful."
Paul Rodgers will replace Johnson at right-back if required, Billy McKay will start in place of McKenzie while Francis Laurent or Ryan Gilligan could take Holt`s place on the left wing.
Midfielder Kevin Thornton joined in training on Thursday after a hamstring injury, left-back Liam Davis is out with a knee problem and striker Tadhg Purcell is still sidelined with his knee injury.
Steve Kabba is back in the Barnet squad for the trip.
The experienced striker has been sidelined since suffering a knee injury at the end of December, but he resumed training earlier this week and will be involved.
Boss Paul Fairclough is hoping Kabba will be fit enough to start alongside Izale McLeod in attack for only the third time this season.
The Bees have no new injury worries after their midweek clash at Aldershot was called off at half-time due to fog.
Jake Cole was recalled in goal ahead of Liam O'Brien and should keep his place.
Defenders Daniel Leach and Darren Dennehy are still missing with foot injuries and striker Ricky Holmes is out for the season with a broken metatarsal.
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