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The goalkeeper started 12 Championship games in a row after joining the Valiants on a season-long loan from Wrexham.
However, with Nathan Jones' side winless in 10 league matches, the Nigeria international found himself on the substitutes bench for last Tuesday's 1-0 defeat at home to Bolton Wanderers with Will Mannion between the posts.
Mannion was again in goal on Saturday as Charlton beat Sheffield United 2-1 to end a run of 11 games without victory, leaving the Valiants 19th in the table.
That is one place below Bolton where Wrexham loanee Ryan Hardie is having a torrid time.
Restricted to eight substitute appearances in the league because of minor injury issues since signing on a season-long loan, Wanderers boss Steven Schumacher revealed Hardie was on the verge of making his first start against Bristol City on October 31 before suffering a hamstring problem, and he remains sidelined.
Davis Keillor-Dunn, who is loan at Sheffield Wednesday from Wrexham until January, is starting to fire.
The frontman scored his fifth goal of the season on Sunday but League One side Wednesday suffered a 2-1 defeat to Oldham Athletic as the League Two outfit sprung an FA Cup upset in the first round.
After a slow start to life at Hillsborough, Keillor-Dunn's five goals in all competitions have come in his last eight matches and Wednesday are ninth in the table.
Ryan Barnett is on a season-long loan at MK Dons from Wrexham but after making four appearances in League One, the wing-back has not featured since he went off injured in the 3-3 draw at Wycombe on September 5.
After a slow start to the campaign, Dons have won four of their last five games to move up to 12th position.
Reds frontman Mo Faal is on season-long loan with Port Vale, who have climbed out of the League Two relegation zone after winning three of their last five fixtures.
However, the 23-year-old made one start and one substitute appearance in the league before suffering an injury, with his last run-out coming in the 1-1 draw at home to Tranmere on August 22.