Millwall midfielder Therry Racon is set to be sidelined for the next month with an ankle injury.
Racon, a summer signing from Charlton, limped off during the second half of the Carling Cup win over Plymouth in midweek.
That match was his debut and he will now have to be patient before making his second appearance after boss Kenny Jacket confirmed the lay-off.
Jackett said: "I think Therry will be out for at least a month."
Racon joins strikers Josh McQuoid and Shaun Batt on the sidelines.