Barring any late injuries in training, Reid who pulled out of talks with American Tony Sanneh, is expected to stick with the squad that drew 1-1 at Brighton last week.
He has doubts over Patrick Suffo who went off at half time of City Reserves 0-0 draw at Portsmouth with a slight calf strain, but will be able to call on the services of fit again Craig Pead who came through the match unscathed.
Lions boss Dennis Wise will add striker Neil Harris to his squad. Harris proved his fitness by scoring in a 45 minute out against Woking Reserves on Wednesday.
Defending set pieces is a major problem for the Sky Blues defence and Millwall used the long throw-in tactics of Canadian Adrian Serioux to see off Leicester City last weekend. Serioux is expected to play despite playing for Canada in their 2-0 defeat against Guatemala in Vancouver in a World Cup Qualifier on Wednesday as is Josh Simpson who also featured in the same match.
City beat Millwall 4-0 in the corresponding fixture last season and tickets are
available for the game in all areas.