Clark has been relatively untroubled by injuries so far this season and will once again choose from a virtually full-strength squad.
The versatile Tom Clarke, who can operate in midfield or defence, is closing in on his first-team return after a serious knee injury that has kept him sidelined since late August, but the Oldham game will come too soon.
Striker Robbie Simpson, who has missed the last four matches with a thigh problem, is also ready to return to full training, but will also miss out.
Huddersfield will be chasing their second away win in League One this season, their only success on the road so far coming at MK Dons in early September.
Sunday's match kicks off at 2pm.