Coventry City have issued the following statement:
"Coventry City Football Club have reviewed the allocation which had been given to Birmingham City for the game against the Sky Blues on Tuesday 23 November, following advice of West Midlands Police.
Birmingham City had been given an allocation of 5,000, but this has been reviewed due to additional safety considerations for the game raised by West Midlands Police, following incidents at the Sky Blues' home game against Derby County in October.
The allocation for Birmingham City will now be capped at 4,076. We apologise for any inconvenience caused to Birmingham City supporters."
The Club has now sold out of our 4,076 ticket allocation for this fixture