Charlton will be without Jose Semedo and Christian Dailly for the visit of Oldham.
Midfielder Semedo serves the final game of his three-match ban and defender Dailly is suspended for one match after his sending-off at Leyton Orient last Friday night.
Miguel Llera should replace Dailly at centre-half while new midfielder Alan McCormack could captain the side in the Scot's absence having worn the armband for the remainder of the Orient match.
Left-back Kelly Youga (knee) remains the only injury absentee.
Youngster Chris Solly scored his first senior goal as a late substitute in the 3-1 win at Brisbane Road but is likely to find himself on the bench again with summer signing Simon Francis preferred at right-back.
Oldham boss Paul Dickov is boosted by the return of striker Warren Feeney.
The summer signing missed last Saturday`s 3-0 home win over Notts County due to a groin injury sustained during Northern Ireland`s friendly defeat against Montenegro 72 hours earlier.
He has since recovered and will come into contention but defender Phil McGrath is set for a long spell on the sidelines due to a knee injury.
Striker Ryan Brooke is also out with a knee problem and goalkeeper Greg Fleming is sidelined after he sustained a tear to his medial ligament.
The Latics will head to the capital in buoyant mood after picking up maximum points from their opening two games.
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